When I Was Born, I Was Dropped As I Was

When I was born, I was dropped as I was being birthed and the doctor caught me by my leg; I was also premature by two months. As I grew up the indent of his thumb was on my leg. As a child I was told if that area of my leg ever hurt I should go seek medical attention, possibly asap. It never hurt until last year, and it ocasionally starts to hurt every two-ish months with intense sharp pain and I get too scared to walk.
The thing is, no one ever told me what was really going on, diagnosis possibly.