7000 steps is really good though! Even if it doesn't seem like a lot compared to the extreme walking you used to do, it's good.
Yes, to my understanding humans evolved for long distance walking and running, not for sitting. Which sucks, because I love sitting almost as much as I love lying down, haha.
I looked into tai chi walking, thanks for the tip! I'll probably not attempt it as a routine, but I think walking slower is better for my pain and I can perhaps try to do the slow balancing steps for a short portion of my walks.