you stressed out at all..i seem to have it only on the right side from the jaw tighten from stress then i grind....try to relax and go out if your stressed if not keep doing physio and don't do surgery make sure that is last last last last last resort it doesn't always work and it's not always better can cause more pain
upper and lower at the same time??? ive never heard of that being done, but maybe some dentists do things differently. i wear a lower splint and it has to be a hard one. the soft ones didnt do anything but make it worse. im on my 4th (splint, nightguard all the same) and i need another. i crack them.