The removal of your gallbladder is the culprit. Some people get what is call bile salt diarrhea after their GB is removed. Fortunately there is a medication that will help absorb the bile salts and halt the diarrhea. There is great info about
bile salt diarrhea that I would like you to read. It covers pretty much everything you need to know.
www.gihealth.com/html/education/bilesaltDiarrhea.html