Why am i still getting sharp pains after 11weeks after my gallbladder removal operation? ?

11 weeks ago i had my gallbladder removed as it was full of gallstones, i was on a low fat diet for 6weeks and was feeling good up until a week ago i started getting sharp stabbing pains when i eat. Not just fatty things but even things that i was eating on the low fat diet are giving me the pains. I thought i should be getting better. Not worse.