I can totally relate to your problems. I have always had issues with my teeth, though. They have always chipped very easilly and recently, like what you are talking about, I've noticed that my teeth seem to be 'softer.' Oddly, I also have a thymoma--I'm 26. The only thing that I can theorize is that the tumour is possibly pushing up against my esophagus somehow causing acid reflux, because I do have a lot of acid along with aching inner ears and throat.

P.S. I also was a coca cola addict for many years. When this MG started exposing itself (causing slurred speech, swalllowing problems, weak face), I started drinking it again. All of these things happened simultaneously, so I'm not sure if they tumour caused me to also have sgrojen's syndrome somehow (as another paraneoplastic disorder), the coke has eroded my teeth, or I have acid reflux suddenly.

Anyway, here's hoping we find an answer!

Nicky