Yeah this happens to me sometimes too. Sometimes I’ll hurt my jaw, or I’ll scratch/pinch a part of my body. It got really bad at one point where I dropped my phone to twitch and broke it. Incredibly humiliating to explain. It’s reeeeally hard to stop a block once it starts. I hear a lotta people just tell me to restart and breathe but that’s really hard to! But unfortunately that’s the only way to really do it. If you can’t stop and breathe try at least to condition yourself to twitch in some other way. This isn’t easy, much love!