Hi, I never feel good standing or sitting but sometimes when I am lying in bed, especially at around 2:00 a.m. I have so much adrenaline rushes that I feel I could run around the city. When I stand up, my BP goes down and I feel like ****. Very often I have to stop what I was doing and lie down. I can cook for 5 minutes sitting in my wheelchair and then I have to go on the couch for 15 minutes. Then I go back for another 5 minutes and rest for 15 minutes. So for me, doing things is a long process.