My left thumb has gotten very achy as has my pointer finger on right hand. Finger isn't misshapen as such but top knuckle very large compared to same finger on left hand. Pain bearable for now.
Not sure if you should see GP, unless pain is unbearable of course. I've not bothered to see mine, though may mention it next time I'm there.
Would hand massaging help, or is it too sore for that?