I can relate I had 9 fillings done a year and a year and a half ago which caused my bite to be off. I saw like 7 dentists that could not help me. I had one tooth refilled twice and the other ones shaved down I don't know how many times over the past year.
None of the dentists could help me. I am now under treatment with a prosthodontist which took a model of all my teeth and did a bite adjustment(shaved some teeth down, shaved some fillings down) -- guess what it feels "different" but not better. I paid a total of $600 for this. I feel like I've had enough. Unfortunately, anytime one has multiple fillings done you run the risk of what happended to us.
At first my TMJD symptoms were really bad because one tooth was really "high" (built with too much material).
The symtoms have gotten better but it acts up now and then with varying symptoms -- pain behind the eye facial twiching, jaw pain, neck pain,. As for my recent bite adjustment 2 weeks ago as usual my jaw discomfort returned. It comes and goes but I must say it never was what it was before the fillings(no TMJD symptoms at all ).
I hope in your case maybe it is one tooth and it can be corrected but in my case several fillings were off. I would recommend a prosthodontist though who can see the big picture also. A friend of mine had the headaches alot but when they adjusted the one tooth it went away.