Is it muscle pain, or something else? I've been having hip pain for a year or so, especially when using the flexors, but my pain isn't (or doesn't feel like it's) in the muscles, but in the joints. I had an opportunity to go swimming once last summer and the pain from a breaststroke kick almost made me pass out (I exaggerate, but only for effect). I'm not sure what the problem is, but flexor exercises haven't been helping (I was hoping that toning those muscles might get things back in alignment, so to speak).