Yeah... my main concern is the proteus mirabilis. It's a nasty bug, especially in high numbers and if it gets out of the stomach it can cause some serious stuff. They say 25% of people have it in their normal flora, but those with it are more prone to diarrhea. Have you ever heard of it?
When I got this it was a year ago. I was pretty healthy and then bam I had uncontrollable diarrhea, nausea, horrible pains in the middle of the night making it so I couldn't sleep and gas... way to much gas. The diarrhea subsided after a week and the horrible pains have gone away with changing my diet. Oh, and I was taking probiotics religiously at the time. I stopped because of all the acid problems but am taking them again now. I'll add in more yogurt and such to see if that helps these lingering symptoms.