Mmm... all I can say is I will not take that large of a playing load, until I gradually build my playing up again. When I get a break from playing in a few weeks I'm going to take advantage.
I'm quite sure I don't have a cyst/nodule. I don't think it's THAT bad... it's not like I feel pain as soon as I play...
I do feel like my B2 monette mouthpiece is a bit too large, though. I ought to try a smaller one. Whether that will help prevent lip damage, I'm not sure.
I asked my teacher about bad habits... the biggest problem was playing too tense, but the past couple months I've really learned to relax when I play.
Thanks for the advice guys. I think the main problem really was the 4-year break and then suddenly playing hard. I'm quite sure my embouchure didn't change since I never went more than 3 months without playing.