This thursday I will have my 2nd echo done. I'm hoping they can give me a better idea of what to expect. My job is very demanding and I have had some shortness of breath. I find it harder to keep up. I am getting everything done, but it seems slower. When I do extra at home, like taking Christmas decorations done from the attic, you guessed it, I got short of breath, where as before I wouldn't. Sounding like such a whiner!! This part seems more mentally challenging!!! Wish me luck on Dec. 1st. Glad I found this site. thank you.