Central incisor being a WHOLE problem

(I’m a type 2 diabetic and have hypermobile Ehlers-Danlos syndrome, plus I’m currently taking Day/Nyquil for a cold)

A while back (a couple years at least), I had a filling done on my left central incisor. The dentist I went to was… less than great, let’s put it. Lots of shame, refused to accept my insurance and made me pay money I didn’t have out of pocket, and something tells me that it was intentionally shoddily done because I had to negotiate the price down. I can feel the edge of the filling on the back of the tooth if I run my tongue over it, which isn’t the main problem.

What IS the main problem is the fact that ever since then, that tooth has been much more sensitive (and in some cases, painful) to temperatures and biting, and I can feel what I’m assuming is nerve pain going down up from it to my nose/through my upper lip. That pain can and does get fairly bad, but a combo of Tylenol and ibuprofen tends to handle it.

Nothing came up on a more recent scan of my teeth (as far as I can remember), and I’ve read that high fillings can cause this type of pain. I’m going to bring it up at my appointment Tuesday either way, but I wanted some input on what exactly it could be. I had a deep cleaning on the part of my mouth on Thursday, where some necrotic tissue was removed, but the hygienist that did it said that removing it should help and it hasn’t.

My working theory is either the filling thing or that I’ve had a particularly stubborn infection that’s stuck around despite having been on antibiotics (typically Cephalexin) for various things; thankfully, I’ve finally found a good dentist that doesn’t trigger my anxiety, so it can and will be handled! I would just like some ideas to bring up to said dentist.