Hi. Thanks for your query. Noted the history of drinking too much alcohol 2 months ago, showing symptoms of ulcer in stomach since then, frequent uncontrolled bowel movements, responded for 8 initial days to multivitamin therapy but now the symptoms are severe and wants to know what to do... Yes, your symptoms are suggestive of gastrointestinal disturbances as indicated by you. I would advise you the following in such a situation: To go for upper GI endoscopy and H pylori infection and to get started with proper medication depending upon the reports. These can be a PPI like Omeprazole, antacid gel to get the gastritis or ulcer treated. Stool tests will help with the diagnosis and an antibiotic can help to overcome this problem. Colonoscopy and CT scan may be needed. Stop alcohol, hot and spicy food, no oily and friend foods. No anxiety and/or stress.