I am! I have to say, that I had no idea how much low-level pain I'd been carrying around FOR YEARS until that damn tooth came out.
I'm really glad to hear that you get to keep your tooth AND get healthy! In this world we're in, that tired old line of "health is wealth" is suddenly and markedly, relevant once again.
I'm also glad to hear that your improved situation has been helpful in managing things with your wife. With that background discomfort and pain, I was always primed for conflict, I know vulnerability is fashionable these days, but there's nothing like letting the guard or the walls down to facilitate getting back on the same page.
I'd encourage you to try to find ways of creating some kind of plans/goals/structure to sustain the music, your overall health, and your relationships as I know that when I (or my clients) don't make such plans, things can slide back to where they were (more or less) and that sense of backsliding can be as demoralizing as realizing you've reached that low, in the first place.
Anyway, glad that things are looking up!