It's not really that bad yet, certainly nowhere near where I was at this time last year where I simply couldn't walk more than 10m at a time, it's more like a gentle niggle like I used to get on my really good days. Driving isn't a problem so far, and I have all my seats adjusted pretty much exactly as you mention in your post so I'm kinda already sorted on that front. It's really hard to describe, as it's not affecting me in any real way so far but it's just that knowledge that this is exactly how it started before.
I'm not going to let it beat me though or get me down, I know there's solutions out there and all I have to do is find them