Epilogue: Back in the ocean
I went into the pool on Thursday night with a local dive shop and spent an hour tooling around. I was sitting there on the bottom, gear off and moving my weights around to fix my trim (for the second time), when I realized I was probably going to be okay.
This morning I went for a shallow ocean dive with a divemaster friend. We had a plan for 30 feet for 45 minutes, including contingencies for if I had to go visit the navy base or a hospital. ("I'll sign this, then this, then this, then we go to 15 and drain the tanks." "I've got O2 in the truck." "Perfect.") Just before we jumped in, he reminded me, "remember, any diver can thumb a dive for any reason." The water was a gin-clear (Bombay) 47F. Saw some very friendly krill that came along for a ride on my gloves, then at the very end a playful seal AND otter were tooling about in the shallows.
Here I am after the dive. No signs or damage or strain in my hands. The tingling is still there, but as I've said before it's something I can live with for a very long time if I have to. More than anything else, it felt relaxing and meditative to dive again. I'll have to bring along my lights or some extra weight next dive. Maybe a heated vest...
All is well; I feel great. We get a happy ending this time.
Thank you to everyone for reading, for the private messages, and for the genuine concern for my health and safety. I'm astonished that this thread has had over 40 thousand views and hundreds of replies and is still active(ish) after five months.