Hi There, I Had My Gallbladder Out A Couple Of

Hi there,
I had my gallbladder out a couple of years ago and now have a LOT of bathroom problems. Anytime I eat anything greasy like a hamburger, bacon and eggs or even a croissant, I have to run to the bathroom within 15 or 20 minutes. It looks like greasy food does not agree with me after my surgery. Is there a specific diet I should be following? What should I eat (or not eat)? It looks like greasy food definitely does not work. Thank you.