I don't know whether this is completely in my head or not, but recently I've noticed that my jaw clicks on the right side when I open my mouth, and when I push my bottom jaw forward (which I have to do to bite and drink).
When I last saw the orthodontist she asked if I got any clicking or pain, and I said no, but recently I've noticed the clicking. I don't know whether it was always there and I've only just noticed it, or whether it's just coincidence that it's started just after she asked me about it!
I've also felt like it's been aching a bit in my jaw joint, but this is probably all just in my head! But the clicking is definitely there, and it kind of reassures me that I'm doing the right thing cos I've heard that lots of people with jaw problems get clicking and pain, and that's part of the reason they get the surgery.