30' walk this morning,
40' swim this afternoon, and, most importantly:
30' spin this evening!
I decided to go for a spin (z1-3, a few light jumps) this evening to see how my back felt. Prior to this, I hadn't rode in nearly three weeks. There was no noticeable increase or worsening of symptoms after the ride, which is great! If anything, it felt a little better. My glute felt a little tight during certain portions of the ride, which of course worried me, but in hindsight it was probably just my mind as nothing bad developed or lasted.
This is great news. Next up will be another 30-45' spin on Tuesday, and I'll take it from there...