
Left abdominal pain, nausea, vomiting, and constipation causes
I have had pain on the left side of my abdomen for the past few days, along with nausea and vomiting. I haven't had a bowel movement in several days, my abdomen feels bloated, and I have no appetite. What could be the possible issue?

Pain in the left side of the abdomen accompanied by nausea, vomiting, and constipation may be caused by various diseases. Digestive system disorders such as gastritis, gastric ulcers, enteritis, or intestinal obstruction can cause abdominal pain, nausea, and vomiting. Constipation may indicate intestinal dysfunction.
Neurological conditions such as herpes zoster can also cause pain and discomfort if the virus affects the abdominal nerves. Severe abdominal pain, nausea, vomiting, and diarrhea (rather than constipation) appearing suddenly are usually symptoms of food poisoning, although constipation may also occur in some cases.
For female patients, cysts and tumors in the left adnexal region (including the ovaries and fallopian tubes) may also cause left-sided abdominal pain. These gynecological issues may not be related to bowel habits, but they still warrant attention.
Inappropriate diet (such as frequent consumption of spicy or fatty foods, overly refined diet), insufficient gastric motility, delaying defecation, and excessive fluid loss can also lead to constipation and abdominal pain. Irritable bowel syndrome is a functional bowel disorder characterized by abdominal pain, bloating, constipation, or diarrhea, often related to diet and stress factors.