I would go to your regular doctor and get your hormones and everything checked and tell her/him about your sadness, etc. You could "grow out of" the feelings but they also shouldn't be as strong as you are describing, there could be bodily changes that are being too extreme that some med might help until they are through changing. You know how when you were early teens, even immediately pre-teen and your legs sometimes ached, etc.? Those were just "growing pains" but there were things you could do to make them less painful; hot bath or compresses, maybe an Advil/Tylenol, that sort of thing. Growing through the teens and early 20's reminds me of watching the shows where the boy turns into a werewolf and how painful that looks? I'd go to your doctor and tell him you'd like some help of some sort, therapy didn't seem to and you're tired of struggling and need a clue as to what's going on and better support medically and from your parents (your doctor can talk to your parents, get them to better understand that what you are experiencing is beyond "normal").