Yes and I did and do every time my SIBO flares up. When I get it under control again, the weight will come off. I am VERY HUNGRY when my SIBO is flaring up. I feel like I can never put enough in my stomach, even though as soon as I start eating I get stomach pain and bloating. I have been battling it for 3 years. I am doing fairly well now after making dietary changes, but every now and then I have to go on the antibiotics for 10 days to 2 weeks. I did not have diarrhea with my SIBO as many do. I had alot of BM's but they were mixed between soft and very hard and floating (test revealed fecal fat so I was not digesting fat due to the sibo).... When I get constipated, that is when it flares up. I have IBS too but the symptoms of SIBO, for me, are very very different. I can gain up to 8lbs when its bad.