Good luck, sounds like a fun "project". My father had bad chronic sciatica when he was older; he'd driven between Washington, D.C. and Rhode Island every weekend (to and from) for a summer back in the early 1950's, non-stop and that can do it too, sitting forever in one position constantly.

I've only really had it bad, once, when DH and I were driving to Florida and I was in excruciating pain, just sitting there, riding, and we had to stop about an hour early and it took forever getting to sleep that night, etc.

I'm trying to get more activity into my day, I sit here at the computer too much. I get aches and pains in the night and I'm convinced it's partly because I don't get enough activity during the day.