Arms dizayyyy! Build those Bi-Triz!
Did you do a different arm exercise today that you normally don’t?
Going heavier could definitely be the culprit here with a combination of bad movement mechanics.
Get back to me on the question and I’ll have some recommendations for you! What if I had a submission for form videos that you could submit and I could dissect your workout for you? Would that help? or shoot me an e-mail, "management@ZeeksFitFreaks.com" and put some video from your next arm workout in there!