I would suggest that you see a Gynocologest. It is possable that your clitoris is still fully covered by the hood. Should that be the case, Thr Gyno. can surgicaly release it. A girl I knew in Florida many years ago had that problem.
I know this is a silly question but...ever tried a vibrator? I, too, thought there was something wrong with me because I couldn't orgasm through my boyfriend's stimulation or my own. Boy, was I wrong.