Thanks for your honesty. I think you are being wise to not force things and to recognize that it could be burnout. Your perfectionism could also be a key here. Whatever it is, hopefully it is temporary, and a desire to play might return years from now. Or it might not.
Right now, one of my students has turned to jazz and boogie-woogie and has lost interest in anything classical. It is a totally new genre for myself to teach but it is fun and holds merits and challenges of its own , I think. Maybe a new genre would interest you eventually, or even some ensemble playing in a jazz group might grab you at some point in the future. Classical solo piano can be a bit lonely and one has to work so hard to get impressive pieces polished, that it sometimes can become a drag. I don't see an option to PM you here, so I'll dare to say that yes, maybe even the snooty stigma of classical music might be a factor.
Here's a vid for you of a talented German we stole having some fun:http://www.youtube.com/watch?v=RiQL1Cik ... re=related
I really hope you still visit P.S. from time to time, and that you keep playing.....even if not soon, then eventually in the distant future.