Hello, A stomach upset can be possible with either veg or non veg diet due to various reasons as viral, bacterial infection or water induced contamination of the GI tract as well. My guidelines for better recovery: - Drink more liquids in sessions - Prefer easily digestible food stuffs as rice curd, dal, hochpoch, organic fresh fruits etc - Avoid all spices, junk foods, dairy fat - Continue mobilisation and acceptable aerobics (till the pain scale allows and permits) - Prescription of anti spasmodic as drotaverine or else with your primary care - Off the counter proton pump inhibitor as omeprazole or lansoprazole to be consumed with sips of water on empty stomach. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Bhagyesh V. Patel, General Surgeon