It could be that the antibiotic has caused your diarrhea. I was on Amoxicillin six weeks ago and ended up with really bad diarrhea for about 10 days. I don't have it anymore, however, my bowels are far from back to normal. I'm hoping that this isn't permanent as I just don't feel well since all of this started and my doctor hasn't really been that much help. What's new there, though!!