Hi, I do power bowling and use my wrist extensively when I bowl, at the beginning of the year I was going back into bowling and used a wrist strengthening tool called the PowerBall, anyway one time I bowled I think I sprained my wrist or somehow injured it, I cannot find any answers on the web about my symptoms, basically I don t feel any pain, no loss of function or strength, only when i bend my wrist inward at a 45 degree angle with my thumb stretched out and fingers clenched in I will feel some pain at the inner side of my wrist when I put pressure on it in that position, what kind of injury is this?