Well the tooth acts somewhat like yours. I mostly have serious pain at night and very caucious of chewing hard on it. I am still on antibiotics, my dentist let me get a Z pack. I have a permanent crown that the endodontist did the root canal through. I keep trying to figure out what tmj means. Everyone is using that term. We may not be even talking about the same thing, lol.
I had no problems when I had the tooth behind 30, on 31, a root canal done a couple of months ago, but I wasn't even sure at that time that 31 was the problem. The endodontist said it was so I had the root canal done. He did a temporary and a month later I went back to my dentist and had him do the permanent filling to the crown. Thats when my problems began. He must have worked an hour trying to get the crown smoothed down, he filled in the crown on 30 because he said some surface had chipped off. Well it seemed like when I left that I still had some bump sitting up on 30 and within 3 weeks the whole side of my face was back to where I began before the root canal on 31. So I had the dentist smooth it off again last Monday and he gave me the Z pack. If by Monday the tooth feels as good as it does right now I may not go have it evaluated. It is still tender but I don't have the pain and it could (hopefully) have just been the way the dentist did not finish smoothing off 30.
Let me know what happens for you on Monday and I'll let you know what happens with me too.