Dr. Hanif warmly Welcomes you! Thanks for consulting at my virtual clinic. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns.   It seems to be due to some irritation of the gastrointestinal tract. It doesn seem to be food allergy because it is happening to almost anything. If I was your treating physician I would have prescribed you Ondansetron before meals, definitely if not allergic to. Plus a complete course of Amoxicillin and Metronidazole antibiotics if not allergic to. Take Omeprazole40mg before breakfast too. It will give you symptomatic relief. you may need a prescription for the drugs. So consult your physician for the same. Hope it helps. If you need further, detailed and quick assistance related to any health issues in future, feel free to ask me a question directly from my profile. Have a wonderful time ahead.   Best Regards! DR. MUHAMMAD M. HANIF USA