Even better, I think I might have overdone it with changing the tire, because my lower back and abdomen are giving me so much shit now that I'm up and about and doing things.
I think at least some of the trouble is from all the bending and twisting I was doing. I think my abdominal muscles actually hurt more than my back rn.
Hot shower and hot blanket did good work. I still have pain today but it's significantly reduced and I'm in a place I can do a lot of my work sitting down today.