I'm not gonna offer much advice but here's what I get and I know we've both crushed ourselves in similar ways. I start with a month of forearm pain, to the point I can't do bi's. It will go from 1 forearm to the other, then it will start in my elbow for another month, just like yours. I finally got sick of it and the docs said I might have minor nerve damage in my neck or shoulder. Nothing major and i train through it and it will go away for severla months and come back. Currently I'm on left forearm pain. I do the glucosime and that helps. No Bi's for a month.
I'd see a doc. Could be the nerve thing and with you'd wanna get that looked at. With all the humping and shit plus your advanced age it could mean they need to put you down you old grunt. Good luck AS
I'm sure I'll pay for this