Took a few days off because lt thumb increasingly painful. Made the realization at work today that I'm picking things up with my lt hand completely differently than with my rt. My rt thumb stopped hurting ages ago. When I concentrate on hold my lt thumb the same as my rt, it doesn't hurt. And the same thing goes for scales. I already altered my lt thumb position so it doesn't hurt when I play a while ago, and I realized today it is mirroring my rt thumb position more closely. Need to concentrate on that!

Hard to come back to scales after almost a week off. Or playing at all, really.