I adore Heather. Last time I saw her wacember of 2022. (Simply the last opportunity I had.) Via her OF, she has had a few set backs due to injuries the past year and a half+. And as far I know she hasn't traveled in years, that's really nothing new.
I don't know if she is retired from sessions, but not being listed anywhere may be a sign. Or simply that she is only seeing guys she's seen before and know how to contact her.
I planned on reaching to her soon. We'll see...