I do have a dentist and the last time I went for a check up they said everything was fine. However I didn't mention anything about my jaw, I generally don't have great trust in dentists i guess. I will book another appointment with my dentist to see what they say first.
The reason why I thought about seeing an ENT consultant was that I had sinus problems. I use to get sinus infections alot which caused very painful headaches and pain around the jaw. I even had food go up my nasal passage, which certainly isn't normal. I have less sinus issues now, this is probably down to diet and keeping my sinus clear especially during hayfever months and winter.