Gary ~ I just wanted to say Hi and welcome to VR. I, for some reason, am unusual in that i don't have any trouble breathing when i'm laying down. It's when i get up that i have trouble breathing. I'm on diuretics, but my legs swell more when i'm in bed. Makes no sense at all, but that's the way i am for some reason.
Sorry i can't be of much help, and that i can only be supportive. When i first joined i was going to have my bicuspid valve replaced in mid-July, but then doctors decided i was inoperable so there is probably nothing more they can do for me. Surgery is scary i know (i was scared thinking about it) but, like Mentu just said, consider yourself blessed that you can have surgery and a chance at living many, many wonderful years!
My best wishes and prayers are with you,
Dawn-Marie