Guess I'm eating those words [emoji3]
I talked to my Stepdad, who's an occupational therapist, about this at one point, and he didn't seem overly concerned. He was the one who suggested spending less time bent over the bar before starting the set, which so far is helping.
I actually asked Dr. Austin Baraki about this during an Instagram live Q&A a few months ago, but I don't think he really had time to give a thorough answer. I believe he said it might be due to improper breathing.
If the problem comes back I will ask my doctor, but if he says never to lift anything over 50 lbs, that advice will be strongly ignored.
Anyway, I appreciate you walking this far with me. I'll continue to study and practice until I get time to visit the SSCs at five x3. This may take a while since I have a one year old, as well as plenty of other things keeping me busy. But it's a good investment, and it's important, and I will make it happen, captain.