Thanks, all. Clearly a consensus. Now I've got a problem. Several months ago when my saddle was too high, I got hip pain after riding. No more pain after I lowered the saddle. I thought whatever injury I got in hip bones was healed. Yesterday I happened to carry heavy loads of grocery. Didn't feel anything. But when I got up today and began to walk, the very same pain is back! So weight lifting or heavy load carrying will obviously do harm to me. Does anyone know how can I get that hip injury really healed?