Stretch/soreness Between 2 And 3

Hi friends, I have been busy playing a lot, and have been getting soreness between my 2nd and 3rd fingers of my right hand. a couple of times they have cramped at a gig - not painful but making them unuseable for a minute or so - good thing I'm a jazz musician! does anyone have any stretches , or better yet, prevention tips to target this area? I suspect the problem is linked to an overly percussive style, and maybe even lugging gear around town. but keen for other insights too. best tom

You're probably using the weight of your arm too much instead of relying on the fingers standing up in a healthy way. The other things you mention could be aggravating this underlying but central problem. AFF