Hip Pain

Hello all
I'm wondering if anyone else experiences this at all... When I'm catching a lot of left handers - where I'm backside with my left foot in front - the next day my left hip/top of thigh is real painful! I'm not sure what I'm doing, I just tend to surf without thinking about it, but I'm wondering if it's due to my bottom turn. I'm only small at 5'2 and 130pounds ish with a 9'1 board so I'm thinking it's the way i'm throwing my weight to turn...
Anyone any advice???
I'm wondering if anyone else experiences this at all... When I'm catching a lot of left handers - where I'm backside with my left foot in front - the next day my left hip/top of thigh is real painful! I'm not sure what I'm doing, I just tend to surf without thinking about it, but I'm wondering if it's due to my bottom turn. I'm only small at 5'2 and 130pounds ish with a 9'1 board so I'm thinking it's the way i'm throwing my weight to turn...
Anyone any advice???