Ahh I wish I'd had you yelling at me like three weeks ago. It's the first time I've dealt with it. Hadn't played much in a month or so but then got really motivated and started practicing some exercises for hours on end for a few days in a row and just really over did it andmust have been playing with my wrist really bent from the way I was sitting at my monitor. On the bright side it's taught me I've probably been using slop form at least half the time for years and years and now I'm practicing in front of a mirror and seeing so many potential avenues of improvement.