I am a 20 year old female, who up until about three months ago rarely ever had any stomach problems. I am also in college and stress out over every little thing.. About three months ago we were planning a vacation I was going to be on my period at the time so I doubled up on my birth control for two weeks to move it up.. I dont know if that has anything to do with it but every since then I have had bowel changes. Usually only in the morning I have an urge to deficate usually the stool is formed. I have been to the doctor three times in the last three weeks after question after question he has said it is IBS that with my age I really dont have anything to worry about.. He has tried me on the medicine Bentyl I rarely ever had diarrhea until I started the medicine it helped for a few days then i started having diarrhea every morning. I have no pain whatsoever. However I am having more gas than usual I am just wondering if this is more serious than IBS. I dont have pain, I haven't ran a fever or anything like that.. and usually after the moring urge (before the bentyl) I was fine the rest of the day.. I noticed some slight mucous in the stool at times. the mucous is now gone since starting the bentyl..