I'm really hoping someone can help me. I suspected I had small bowel bacterial overgrowth so I got my aunt to prescribe me 5 days of 800mg/day rifaximin. While i was taking it I was on a vacation and pretty much all i did was rest and eat the way I wanted. I improved to FANTASTIC results even on the 3rd day and could eat everything I wanted, and believed that my entire IBS was healed then. By the 5th day, however, I started having much more frequent stools despite the soluble fibre I was eating from veggies, though I think I did raw veggies and fats way too much the final two days (I had been on a raw vegan diet during my candida-ibs phase and wanted to go back to that way of eating as soon as possible). On the 5th day, I had to take an overseas flight and was extremely sick on the plane, then when I got home there was a time change so I didn't have anything to eat for 30+ hours while extremely weak and also packing up my apartment to move on Sep 1 all at once. On the day I came home I had extremely bloody diarrhea, high fever and even chest pains for the first time in my life and I was so worried for my life. My theory is that the small bowel bacterial overgrowth got better extremely quickly but worsened extremely quickly because of the amount of stress on the day that I finished, that it came back with a greater swing. I've never had symptoms like this. That was a week ago. Three days ago I had very dark stools and extreme lower abdomen pain and had to go to ER; they did blood tests and ultrasound but there was no inflammation, and I know that I don't have Crohns and such because I did a colonoscopy earlier this month. I think the antibiotics really screwed me up because I tried "too hard" to get regular good bowel movements way too quickly. After not being able to eat anything but white rice and being extremely feeble for three days (and went to ER two more times because of severe nausea and gastric bleeding pains again), I decided to regain my strength, stop listening to the doctors, and do what I need to do, which is make my body strong. I have a tendency to be extremely sensitive to all symptoms, and when I feel like I have a symptom it's much earlier than when visible symptoms actually appear. Today I have terrible terrible nausea and feel like I am about to throw up, which would be the first time ever since I've had IBS for the last year and a half. A part of me wants to go back on the Rifaximin asap while taking it easy with the fibre and the diet and such, but a part of me is also scared because it screwed up my insides so much very quickly. I'm not sure what I should do, I've never had flare-ups because I've only really started having this kind of IBS-A this summer, prior was all Candida-IBS with extreme constipation and brain fog only. I've obviously improved over time because Candida-IBS is scarier than IBS-A/any IBS with strong visible symptoms in my experience, but I am due to start school again in a week and don't know if I can do this myself. The ER doctor yesterday looked at me like I was insane when I mentioned SBBO yesterday and told me that "i was on a little constipated side" when he looked at my x-rays. The only reason I am constipated is because I followed the ER doctors' advice of eating soup only! God! I only know more than ever that I should not follow these doctors' advice. I just need another foothold before school starts and I don't know if I should take the Rifaximin again somehow. I did see my GI on the 30th but all he told me was to stop taking the antibiotic because it screws up with the good bacteria in the gut, and to stop being so anxious. I am not due to see him for another two months, but I've been to the ER three times since seeing him.What should I do? Does the fact that the blood tests came back normal say that I am just being extra sensitive? I have a fever (though it's been decreasing) so it makes me think I have SBBO. I just am not sure about the degree to which I have this infection because I've messed around with my body so much. Please help. I've had comprehensive tests done this summer overseas that cost a good $1000 out of my parents' pocket, and I know that I am overall very healthy and that this is probably more acute thing than anything. However, whenever flare-ups like this happen I panic and take some drastic action that I know I might regret later... Should I just take gravol and wait out the nausea?