Dr. Susan Berkowitz Dab, MD

An individual with anemia will have the following symptoms: shortness of breath, weakness, dizziness, cold hands or feet, paleness, and irritability. Anemia is diagnosed when blood tests show low counts for hemoglobin, which is the protein responsible for carrying oxygen to different tissues throughout the body.

Treatments for anemia are dependent on the kind of anemia an individual has. For example, iron supplementation may correct iron deficiency anemia. For anemia caused by chronic kidney failure, chemotherapy treatments, and HIV/AIDS, a group of medications called erythropoiesis-stimulating agents may be prescribed.

Some people with bulimia may have swollen parotid glands (salivary glands near the cheeks) that give their face a puffy "chipmunk" appearance. Their skin may look dehydrated and dull from repeated purging. Red scars and marks on the backs of the knuckles are prevalent in those with bulimia. Eating disorder experts may refer to these as "Russel's sign," named after a well-known psychologist.

However, others with bulimia may not show any outward signs of having an eating disorder. They may deliberately hide their eating habits or conceal their purging after a meal. It is important that family members and friends help loved ones with bulimia seek treatment. While many people with bulimia are still able to lead outwardly successful and active lifestyles, bulimia may have lasting and severe consequences to one's health. Electrolyte imbalance from bulimia is particularly dangerous and may lead to heart attack or stroke. Similarly, continued dehydration and disturbances in electrolyte levels can cause kidney damage and reduced kidney function.

Treatment for bulimia typically includes therapy and nutrition counseling. Eating disorder support groups, both online and in person, are often beneficial to recovery. Medical professionals may also look to treat the mental health problems that frequently accompany bulimia, which are body dysmorphia, post-traumatic stress disorder (PTSD), and depression. Dietary specialists can assist patients with reintegrating foods into their diet and increasing consumed calories. Some patients may attend inpatient rehabilitation or eating disorder clinics, which provide all of the above treatments in a residential facility.

Fortunately, many people recover from bulimia and are able to fully restore their health.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.