Digestive difficulties	A deficiency in digestive enzymes will lead to your body’s inability to properly digest food and absorb nutrients. This can lead to malnutrition and electrolyte imbalances.
Malnutrition	Malnutrition is a deficiency for energy, protein and micronutrients (for example vitamin A, iodine and iron) either singularly or in combination. Malnutrition can cause respiratory infections, kidney failure, blindness, heart attack and death.
Anemia	Anemia is a deficiency for iron, which makes the oxygen transporting units within your blood useless. It can lead to fatigue, shortness of breath, increased risk of infections, and heart palpitations (i.e. irregular heartbeats).
Electrolyte imbalances	Electrolytes are essential to proper body functioning. Electrolytes are responsible for your body's "natural electricity" (ion balance) that ensures healthy teeth, joints and bones, nerve and muscle impulses, kidneys and heart, blood sugar levels and the delivery of oxygen to the cells.
Hyponatremia	Hyponatremia means not having enough sodium in your blood. Drinking too much water (more than eight, eight-ounce glasses in less than twelve hours) can cause hyponatremia, especially when you are already malnourished or dehydrated. Hyponatremia can cause fluid in the lungs, the brain to swell, nausea, vomiting, confusion and even death.
Dehydration	Dehydration is caused by the depletion or lack of intake of fluids. Restriction/starvation, vomiting and laxative abuse are the primary causes in sufferers of eating disorders. Symptoms include dizziness, weakness, and darkening of urine. Dehydration can lead to kidney failure, heart failure and death.
Hyperactivity	Hyperactivity means you have trouble sitting still, you constantly feel the need to keep busy.
Weakness & fatigue	Generalized poor eating habits, electrolyte imbalances, vitamin and mineral deficiencies, depression, and heart problems all cause weakness and fatigue.
Chronic Fatigue Syndrome	Symptomatic of this syndrome is a continuous and crippling fatigue related to a weakened immune system.
Insomnia	Insomnia means you have problems falling and/or staying asleep.
Impaired memory
Concentration & attention problems
Anxiety
Depression	Mood swings and depression can be caused by physiological factors such as electrolyte imbalances, hormone and vitamin deficiencies and dehydration. Living with the eating disorder behaviors themselves can also cause depression. Depression can lead you back into the cycle of the eating disorder or may have initially been the problem before the onset of the eating disorder. Stress within the family, job-related pressure and relationships can all be causes. There are also a percentage of people born with a pre-disposition to depression, based on family history.
Lanugo	Your body has a protective built-in mechanism to help keep you warm. The hormonal imbalances during periods of starvation and malnutrition cause you to get soft downy hair on face, back and arms.
Skin and hair problems	Vitamin and mineral deficiencies and dehydration affect your hair and your nails too, your skin will get dry, your hair will first become dry and brittle, and might even fall out.
Easily bruising skin	Vitamin deficiencies that decrease your body's ability to heal itself, low blood pressure, low platelets count and/or extreme weight loss will all lead to easily bruised skin that can take a long time to heal.
Lowered body temperature	Because of the loss of the healthy insulating layer of fat and lowered blood pressure you constantly feeling cold, especially in your extremities.
Edema	Edema is the swelling of the soft tissues as a result of excess water accumulation. It is most common in abdominal area of anorexics and/or bulimics. It can be caused by laxative and diuretic use.
Swelling	Repeated self-induced vomiting can lead to swelling in the face and cheeks.
Callused or bruised fingers	This is caused by repeatedly using your fingers to induce vomiting.
Bloodshot or bleeding in the eyes; light bruising under the eyes and on the cheeks
Frequent soar throats & swollen glands
Dental problems	Stomach acids and enzymes (from vomiting); vitamin D and calcium deficiencies, and hormonal imbalance cause decalcification of teeth, erosion of tooth enamel, severe decay and gum disease. Dental problems can also be due to the lack of the exercise your teeth normally get from the process of eating certain foods. Dental problems may also indicate problems with your heart.
Arthritis (degenerative)	Hormonal imbalances and vitamin deficiencies cause arthritis.
Osteopenia	This is a below normal bone mass indicating a calcium and/or vitamin D deficiency and leading to osteoporosis.
Osteoporosis	Osteoporosis is the thinning of your bones with reduction in bone mass due to depletion of calcium and bone protein, predisposing to fractures. This causes pain and easy fracturing of bones. Hormone imbalance/deficiencies associated with the loss of the menstrual cycle can also increase your risks of osteoporosis and osteopenia.
TMJ Syndrome	This is degenerative arthritis within the Tempero-Mandibular Joint in the jaw (where the lower jaw hinges to the skull) creating pain in the joint area, headaches, and problems chewing and opening/closing the mouth. Vitamin deficiencies and teeth grinding (often related to stress) can both be causes.
Muscle atrophy	Because your body starts feeding off of itself, your muscle wastes away and your muscle mass decreases.
Impaired neuromuscular function	This is due to vitamin and mineral deficiencies (specifically potassium), and malnutrition.
Paralysis	Paralysis means extreme weakness of muscles or not being able to move at all. It is caused by low levels of potassium, and/or the degeneration of nerve cells, in the spinal cord or in the brain, which have been deprived of essential nutrients. Left untreated, periods of paralysis may happen more frequently and more severely, lead to permanent muscle weakness, and even result in death.
Amenorrhea	Amenorrhea refers to the loss of your menstrual cycle. It is caused by lack of secreting hormone, estrogen, by the ovaries. The loss of your menstrual cycle can also lead to osteopenia and osteoporosis.
Infertility	This is the inability to have children. It is caused by loss of your menstrual cycle, and hormonal imbalances.
Problems during pregnancy	Malnutrition, dehydration and vitamin and hormone deficiencies can make it impossible to succeed with a full-term pregnancy, and significantly increase the chances of miscarriage, stillborn babies and death or chronic illness from minor to severe, in children born.
Polycystic Ovarian Syndrome	A study a few years ago suggested that people with eating disorders were at an increased risk for developing Polycystic Ovarian Syndrome (PCO), and that recovery from the eating disorder should be part of treatment for PCO.
Loss of sexual desire or promiscuous relations>
Liver failure	Your liver aids in removing waste from cells, and aids in digestion. You cannot live without your liver. Fasting and taking acetaminophen (drug found in over-the-counter pain killers) increases your risks for liver damage and failure. Loss of menstruation and dehydration (putting women at risk for too much iron in their system), and chronic heart failure can lead to liver damage or failure.
Kidney infection & failure	Your kidneys "clean" the poisons from your body, regulate acid concentration and maintain water balance. Vitamin deficiencies, dehydration, infection and low blood pressure increase the risks of and associated with kidney infection thus making permanent kidney damage and kidney failure more likely.
Pancreatitis	This is when the digestive enzymes attack your pancreas. It can be caused by repeated stomach trauma (such as with vomiting), alcohol consumption or the excessive use of laxatives or diet pills.
Cramps, bloating, constipation, diarrhea, incontinence	This is caused by increased or decreased bowel activity.
Peptic ulcers	Ulcers are caused by increased stomach acids, cigarette smoking, and high consumption of caffeine or alcohol.
Tearing of esophagus	This is caused by self-induced vomiting
Mallory-Weiss tear	This is a tear of the gastro esophageal junction, associated with vomiting.
Gastric rupture	Spontaneous stomach erosion, perforation or rupture.
Gastrointestinal bleeding	This means bleeding into the digestive tract.
Esophageal reflux	Partially digested items in the stomach, mixed with acid and enzymes, regurgitate back into your esophagus. This can lead to damage to your esophagus, larynx and lungs and increases your chances of developing cancer of the esophagus and voice box. Reflux can sometimes become severe enough that food cannot be kept down at all and medical attention should be sought immediately.
Barrett's Esophagus	Associated with Cancer of the esophagus and caused by esophageal reflux, this is a change in the cells within your esophagus.
Cancer	Acid reflux disorders can give you cancer of the throat and voice box (Larynx).
Thrombocytopenia	Thrombocytopenia means a low platelet count. It is caused by low levels of vitamin B12 and folic acid, and/or by excessive alcohol. It may also be an indication of a suppressed immune system or immune dysfunction.
Hyperglycemia	Elevated blood sugar can lead to diabetes, liver and kidney shut down, circulatory and immune system problems.
Hypoglycemia	Low blood sugar can indicate problems with your liver or kidneys and can lead to neurological and mental deterioration.
Hypotension	Low blood pressure or hypotension is caused by lowered body temperature, malnutrition and dehydration. It can cause heart arrhythmias, shock or myocardial infarction.
Orthostatic hypotension	This is a sudden drop in blood pressure upon sitting up or standing. Symptoms include dizziness, blurred vision, passing out, heart pounding and headaches.
Hypertension	Hypertension or high blood pressure means your blood pressure exceeds 140 over 90. It can cause blood vessel changes in the back of the eye creating vision impairment; abnormal thickening of the heart muscle; kidney failure; and brain damage.
Diabetes	Hormonal imbalances, hyperglycemia, or chronic pancreatitis can lead to a low production of insulin, which in turn results in high blood sugar.
Ketoacidosis	As a result of starvation, excessive purging, dehydration, hyperglycemia and/or alcohol abuse (it can also be a result of uncontrolled or untreated diabetes) your body will burn fat instead of sugar and carbohydrates. This leads to the building up of high levels of acids in your blood (known as ketones) and can cause coma and death.
Heart problems	There are many factors associated with having an eating disorder that can lead to heart problems like bad circulation, slowed or irregular heartbeat, arrhythmias, angina or a heart attack. Sudden cardiac arrest can cause permanent damage to your heart, or instant death. Electrolyte imbalances (especially potassium deficiency), dehydration, malnutrition, low blood pressure, extreme orthostatic hypotension, abnormally slow heart rate, and hormonal imbalances call all cause serious problems with your heart
Very rapid aging
Seizures	The increased risk of seizures in anorexic and bulimic individuals may be caused by dehydration. It is also possible that lesions on the brain caused by long-term malnutrition and lack of oxygen-carrying cells to the brain may play a role.
Death	Yes DEATH. As in DEATH. 10% of anorexics die prematurely, either from suicide or complications… Eventually you will most likely die from any (combination of) the following: heart attack or heart failure; lung collapse; internal bleeding, stroke, kidney failure, liver failure; pancreatitis, gastric rupture, perforated ulcer, depression and suicide.