My jaw is producing clicking noise anytime i open or close it, but recently it won't open fully ! what does it mean?

Jaw problem: The symptoms/signs you describe are consistent with a problem with a temporomandibular joint (tmj). A dentist/ orthodontist/ent can examine your jaw joints & provide treatment.

Displaced disc: If your disc has slipped out of position, it can cause these symptoms. Best to get it evaluated soon to see if conservative treatment can be effective.