I had hip pain from throwing. Turns out it was my lower back, not my hip. My father-in-law is a chiropractor and he said that often hip pain is actually from the lower back being out, not actually from the hip. He said it isn't that frequent your hip would actually be out as it is a very large join. He adjusted my lower back and the pain went away immediately. Might want to check out a chiropractor...a good chiropractor. There are good ones and not so good ones, as with any profession.