I'll bet the small weights had somethin to do with it, especially if you did a lot of reps. You're probably fine, unless you've somehow contracted the dreaded bodhranus despiculosis parasite. I did a google search on this one and apparently the host will only feel discomfort during the first stages when the little bastards are reproducing;~) Drink your milk and no more worries. I get the same thing when playing guitar sometimes in the summertime. I've had my thumbs and index fingers seize up before. Course the beers bring out the sweat and the mineral loss too.