[ak267]

Thanks for the advice. The main things are:

(1) Massaging forearm relieves some of the pain when clasping

(2) Middle finger hurts when I either grip an item or pull it to the right (left, up and down are okay).

I’ll give it some time (I’ll take some Motrin) and do some massaging. If it doesn’t go away, I’ll see my GP or a specialist (what kind of specialist?).

[MHGinTN]

Reduce the amount of tennis you’re playing ...

[Caipirabob]

Seriously, try soaking your hand in hot water with epsom salts. If it doesn't bring you some relief, there may be some damage to address. Epsom salts can't hurt, so take this advice for the salt it's worth. Good luck.