Originally Posted by
hyperbolica
I'm a bit younger, but I had the same issue about a year ago. I was terrified that (at 56) age was going to start catching up with me. For me, it started at the beginning of notes, and it lasted for a couple of weeks. Now it's gone. I've tried to relax my breathing, get in some exercise, and practice long notes. I was also doubling on trombone, euph and tuba, and playing a lot of tuba at the time. The crazy embouchure changes I was putting myself through, mainly with the tuba may have had something to do with it. I've been focusing more on trombone and euph, and haven't had it return. It felt like uncontrollable weakness, which is what scared me. If you're doubling or straining your embouchure in some way, try backing off for a week or so and see what happens. I think I did a minute of freebuzz before practicing just to make sure the chop muscles were still doing what they should.
Best of luck. I hope you get it figured out.
Tuba was hard on me. I was prone to a double buzz and I never quite warmed up to the mouthpiece. I doubled for a couple of years and played tuba in a community band, but finally just figured that tuba wasn't for me.
Sterling Virtuoso Euphonium, Denis Wick 4AL