I've found that swimming isn't as immediately exhausting as other exercise. It's the only exercise I can think of that doesn't make me dizzy.

I do strength training laying down, there’s quite a few YouTube tutorials. I also cut gluten and dairy from my diet, it helped quite a bit with my energy and my weight. I eat things that I know what the ingredients are. I included the link to the exercise video I follow. https://youtu.be/Heel8SBZSuc

Hey, I also got mine from Covid! Id try swimming, I used to be a competitive athlete before this but unfortunately POTS has wiped out my ability to compete. However, if taken slowly swimming is a great way to stay active. although I always bring someone with me and tell the life guards I have POTS, just in case. For walking I always have my service dog with my and she’ll tell me if I need to sit down or not, but I always bring a pulse oximeter to check on my heart rate periodically.