Hi I thought I'd add my bit to this post because exercise has made a HUGE difference for me. It was suggested to me, too, that leg strengthening will help the blood not pool as much in my legs. I was pretty, no very, sceptical, particularly as my legs were of at least average strength to begin with (don't ask me why - it's not as if I could use them much). I did resistance training - weight training - just for my legs. If you can find a gym or physio you can ask for exercises that will just strengthen your legs. Lots of these can be done sitting or even lying down! I'm talking leg presses etc. against free or pin weights. See, for me, and I'm guessing for a lot of us, walking isn't (or wasn't - I'm a lot better now) an option - standing makes me faint. Different doctors say different things - I know my specialist didn't want me to do any cardio, at least until I had started getting considerably better, as she thought it would worsen my POTS. I know this may sound weird, but I stuck with it, slowly going up the weights and it made the world of difference for me. I'd never seen the inside of a gym before and felt weird going in one, but I slowly, but continually, keep on improving - which made it all worthwhile. If Dr Lowe was suggesting you do leg strengthening, I think he might have meant doing some leg exercises designed by a physio or gym? I don't know, obviously, but I know that was what my doctor meant. Hope you find something that works Amy