So lately, I've been having this pain in my 1st and 2nd joints on the index finger of my throwing hand, that I have never experienced before. It's gotten pretty sore during the last 2 throwing sessions, which have been less than an hour due to the heat,
so I'm not overdoing it by any means. It only hurts when I throw backhand and the pain goes away after I'm done throwing for the day. This happens when using either a power grip or Climo grip, and seems to hurt more when throwing narrower discs like mids and putters.
I did change my form recently, which seems to coincide with this pain. I basically have started focusing on keeping the base of my thumb facing the opposite direction as long as I can, and at the very last second I try snapping my wrist so the thumb points directly at my target, as recently mentioned in the SS thread. Since doing this, I feel the most tremendous tugging on my fingers, and I'm getting very good flights out of my discs. I have thought I've felt the weight of the disc before, but this is a much noticeable tug.
I'm just wondering if this is something normal due to changes in my throw, or I have I really messed up my form and created a potential for injury? I'm really happy with my throwing results, but I'm concerned about this. Any advice or feedback is greatly appreciated!