Welcome back, Q! It's good to see you back in the ring. Sorry the back is still an issue, but you can find a way through.
I've been hit or miss lately too, so no apologies needed. Sometimes we have our A game and sometimes a victory is found in just staying afloat. My back has been an issue lately too, but not as bad as you've been experiencing. I'm just old, so after working outside all day I'm too sore or cramped up to use my new rowing machine.
Hang in there and do what you can.
(Hey I just noticed your new pic! Nice job, ya wookie)