Derick.... I was doing chin ups the other day and felt the same forearm pain I used to and figured out how to stop it... for me at least. It's not so much about curling wrists. If your condition is the same as mine try this:
When curling, and you finish your last rep, let your arms hang with the weight still in your hand for 3-4 seconds before you put the weights down.
When I was doing chin ups, I instantly dropped after I finished and instantly felt pain. However, every time I hung on the bar with extended arms for 3-4 seconds then let go, no pain at all. Same with dropping weights instantly when curling. Let your arms loose but hold onto the weight for 3 seconds before putting it down.
Try it bro it honestly works like a charm for me now and let me now if this helps...