lower left abdomen pain?

I have a really bad sharp pain in my lower left abdomen, it even hurts kinda when i lift my leg. Ive had this happen before like a month or 2 ago when i had a uti, or i thought i did because i went to the doctors and i didnt have one and i told my doctor about the pain and all she said was if it continues she can give me medicine. (I was pissed off about that) im seriously scared bc i had a uti for a couple days and it went away naturally and now i have this pain. Im so scared.