As you know, I am very tired often.

You all should be right there with me, I am very tired about once a day.  That is the importance of exercise, to increase endurance.  I have stregthened my muscles with exercise already and that has helped immensely.  I know I don't walk perfectly, but the exercise ishelping me walk better.  It is strange to many people how I am sometimes, I tell people, "can you believe that I have been like this for just under a year, and I might be like this for the rest of my life.  I have always been a very social person, I see people all of the time that I have known for years and they can't believe it.  I am still staying positive about things, but it is not easy.