Re: Have you ever bruised your thenar's?
Hi SoCal, you've given yourself a rarity there, the only other time I've seen similar soft tissue injuries there has one of my patients who was a new surf and he was slapping his hands down hard to get speed for the pop up.
If you have shooting with a bolt action rifle and you palm the bolt, you can get a similar injury with some nerve issues, if your thenar injury worsens or continues longer than you think it should, have it checked, there are possible relationships to the neck and surfers do disturb their neck alignment with their heads up paddling.
A worse injury in the same area is a fractured scaphoid from a hands plant type fall, (common in skateboarding) .
Without an examination I'd hazard a guess that you self diagnosis could be on the money, get someone to watch and advise you on you pop ups
I've taken up troll hunting just for fun, instead of a rifle I'll just use a pun! 冲浪爷爷