Had diarrhea before starting1 pill of bentyl/day for ibs for past 3 days. very queasy, significant loss of appetite. mild abdominal pain, is this ok?

Common side effects: Bentyl (dicyclomine) slows down the gut, which is why it can help with diarrhea. But if the gut's too slow, it can cause food to sit in the stomach too long, causing poor appetite and nausea. It also makes it harder for gas and stool to pass, resulting in pain. The dose may need to be lowered, or the drug changed to something else. Often side effects improve with time, but discuss with your doctor.