After i started taking prevacid i didnt have diarrhea for 3 days but i had a hard BM then nothing for another 4 days then sharp pains and a long hard bm then every 2 days since. well I was up last night with the runs. every hour i was in the bathroom. And im still in the Bathroom every hour now. whats comming out now is yellow and mucusy. theres nothing in my system. What the heck is going on?