I Was Just Standing And When I Turned Heard A

I was just standing and when I turned heard a loud pop and immediate pain period excruciating pain. I couldn't walk I was crying, I could barely make it up the steps and barely get on my bed. Now we can have later, no, two weeks later I have this huge bruise from the inside out comma and coming up the stairs and going down the stairs and walking correctly is very difficult. It is my right side and it hurts really bad at the top of my pelvis