Feel pain in upper crowned teeth whenever I chew.

Possibly serious. Go to the dentist and let them check with an x-ray. Probably an abscess forming with decay, or else if a new crown, just the bite needs adjustment. Do not write to us for help - dentisty is not a self-help business. Even dentists need dentists. and you should not try to be your own dentist. Go now before you cannot be helped or before you have no choice but to have an extraction.