A big heartfelt THANK YOU to each an every one of you. I learned to much!!
First of all, I was wrong. It was just an email to remind me to check in in one hour.
I've now checked in. I got my favorite seat - window - and there was one left.
Curious there was an H (handicap) seat available. I could select it. How likely would it be that they could move me out of that seat? 100% if a handicap person needed to have it?