It sounds that you most likely have a viral gastroenteritis. (The term stomach flu is commonly used but technically the flu refers to the influenza virus family which is strictly a respiratory illness) I would recommend that you try either Kaopectate or Pepto-Bismol for your diarrhea. Drink plenty of fluids, Gatorade is great for this type of illness as it helps to replenish your electrolytes. Get rest. If you develop a bloody diarrhea, high fever or severe abdominal pain that you can't sleep through then something more serious may be going on and you should see your doctor. If you use the Pepto then seeing a chalky black discoloration within the stool is normal. I hope this info helps. Follow up questions are welcome if you have any.
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Anthony Bray MD
Yes, you can eat!! The main diet restrictions would be if you were having vomiting. A bland diet including soup and carbohydrates is the easiest on the GI tract. I would recommend that you avoid heavy meals especially foods rich in proteins or fats. (Whoppers and pizza are not the best right now!!) Light foods and the bland diet will help the diarrhea to settle down. Good Luck, I hope you get to feeling better soon. If you have other questions then I'll be happy to get back to you with these.
Best Regards, XXXXX XXXXX MD
PS The time course on these is typically about 3 to 5 days but can vary depending on the underlying cause.