So now it's June 17, 4 months later. The "hit by a truck" fatigue that kept me in bed has not come back. I continue to walk every day....from the above 1 lap around the living room to 29 minutes outside every day. BUT, that's it. I still cannot sit up in even a recliner for more than 1 and 1/2 hours... One day I sat for 2 hours and had a relapse the next day. I still can't concentrate so I can't read!!! That's awful considering how isolating POTS is. I am really, really down. This is as good as it gets, I guess. I couldn't even go see my 80 year old dad today for Father's Day. I feel very, very sad and I can't snap out of it, no matter how hard I try. I don't understand the 2 side effects I had from Midodrine (couldn't read at all when on it & then position vertigo started)... The Midodrine worked perfectly other than those 2 side effects that make it impossible. I don't know what is "Like" Midodrine, but without the side effects. I just don't know what to do any more.