left upper quadrant abdominal pain, stomach pain, upper abdominal pain, vomiting

Gastroenteritis involves diarrhoea or vomiting, with noninflammatory infection of the upper small bowel, or inflammatory infection of the colon, both part of the gastrointestinal tract. ... 

irregular menstrual periods, poor appetite, stomach pain, upper abdominal pain

Alcoholism is the consumption of or preoccupation with alcoholic beverages to the extent that this behavior interferes with the alcoholic's normal personal, family, social, or work life. Alcohol consumption caused by alcoholism can result in psychological and physiological conditions, and ultimately in death. Alcoholism is one of the world's most costly drug use problems; with the exception of nicotine addiction, alcoholism is more costly to most countries than all other drug use problems combined. ... 

nausea, stomach pain, upper abdominal pain, vomiting

Gastritis is inflammation of the gastric mucosa. The word comes from the Greek gastro- meaning of the stomach and -itis meaning inflammation. Depending on the cause, it may persist acutely or chronically. ... 

nausea, stomach pain, upper abdominal pain, vomiting

Gastroesophageal Reflux Disease (GERD; or GORD when spelling oesophageal, the BE form) is defined as chronic symptoms or mucosal damage produced by the abnormal reflux of gastric contents into the esophagus.This is commonly due to transient or permanent changes in the barrier between the esophagus and the stomach. This can be due to incompetence of the lower esophageal sphincter (LES), transient LES relaxation, impaired expulsion of gastric reflux from the esophagus, or association with a hiatal hernia ... 

nausea, poor appetite, stomach pain, upper abdominal pain

Hepatitis A (formerly known as infectious hepatitis) is an acute infectious liver disease caused by the hepatovirus hepatitis A virus. Most commonly transmitted by the orofecal route, such as contaminated food, hepatitis A does not typically have a chronic stage and will not cause permanent liver damage. The patient's immune system makes antibodies against hepatitis A that confer immunity against future infection. A vaccine is available that will prevent infection from hepatitis A for approximately 15-30 years. ... 

nausea, stomach pain, upper abdominal pain, vomiting

A peptic ulcer is an ulcer of one of those areas of the gastrointestinal tract that are usually acidic. A more general term, peptic ulcer disease (PUD), is also in use. Most ulcers are associated with Helicobacter pylori, a spiral-shaped bacterium that lives in the acidic environment of the stomach. Ulcers can also be caused or worsened by drugs such as Aspirin and other NSAIDs. Contrary to general belief, more peptic ulcers arise in the duodenum (first part of the small intestine, just after the stomach) than in the stomach. About 4% of stomach ulcers are caused by a malignant tumor, so multiple biopsies are needed to make sure. Duodenal ulcers are generally benign. ... 

stomach pain, stomach swelling, upper abdominal pain, vomiting

Acute pancreatitis is a rapidly-onset inflammation of the pancreas. Depending on its severity, it can have severe complications and high mortality despite treatment. While mild cases are often successfully treated with conservative measures or laparoscopy, severe cases require invasive surgery (often more than one intervention) to contain the disease process. ... 

cramping abdominal pain, nausea, stomach pain, vomiting

In medicine, gallstones (choleliths) are crystalline bodies formed within the body by accretion or concretion of normal or abnormal bile components. ... 

pain in neck, sore throat, stomach pain, upper abdominal pain

Infectious mononucleosis, (also known as the kissing disease, or Pfeiffer's disease, in North America as mono, and more commonly known as glandular fever in other English-speaking countries), is a disease seen most commonly in adolescents and young adults, characterized in teenagers by fever, sore throat, muscle soreness, and fatigue. Mono typically produces a very mild illness in small children. White patches on the tonsils or in the back of the throat may also be seen, (resembling strep throat). Mononucleosis is usually caused by the Epstein-Barr virus (EBV), which infects B cells (B-lymphocytes), producing a reactive lymphocytosis and atypical T cells (T-lymphocytes) known as Downey bodies. ... 

dark urine, nausea, poor appetite, yellow color of skin or eyes

Hepatitis is inflammation of the liver. Several different viruses cause viral hepatitis. They are named the hepatitis A, B, C, D, and E viruses. ...