sorry - i have no idea who dr. kroger is, but i am sorry you're feeling bad and scared.

i think it is a valid feeling - knowing we're attaching to someone. no one lives forever and if they are older (i think) it makes such fears more present. I worry about that with my t as well. She looks tired and a lot older than say my mom who is actually a year older than t. Or i worry she'll retire and leave me stranded. But I have to say it is common for me to wonder about her dying every single session. =( I think we just have to trust that they'll be with us as long as they can and to put it aside.
Hope you can let the fear go a little.
((((((((((((dinah)))))))))))
kiya