I'm currently working my way up to drink h202, I'm currently gargling it, inhaling and clearing sinuses but I read that you shouldn't just stop h202 therapy as it leaves the toxins still in your body, you're supposed to reduce your drops like you added them. I dont know how true this is and I have no idea why you abdominal would be like that either but if your doctor says your ok then I guess its nothing serious. Try taking it again in small does maybe? See what happens, that's what I would do. I read some woman drank it and got on her 17 days, for violently ill and then got better after. Hope this helps!