i have had stomach cramps, BM and or diarrhea with increased frequency the past 4-5 days. I have been checking my diet by staying away from most dairy products for the past two weeks. I was feeling better. I had an abscess and root canal last Monday and have been on penicillin (4 500mg Tabs a day since 10/22). I am wondering if I should stop the penicillin. I have 9 pills left.