@brigby Hi. I was in the same shape as you back in 2013. I couldn't walk from one room to the next without sitting down to catch my breath. For yrs I couldn't go to a mall, except to one store only. Even that would wipe me out. Today, I can walk all I want, and rode my bike two days ago 8 miles! After being sick for so many yrs, I never thought I would improve to the point that I have. I actually improved my 6 min walk at my last dr visit. My dr was astounded. Never give up fighting to better your health, it is possible to improve.