I'm not quite sure what to say that may help but I would be frustrated, too. I also get annoyed with obligation or stuff I'm feeling forced to do.
It must be hard carrying a little on when feelings so much body betrayal. I couldn't imagine.
I hope you can go... And bring a book or something, maybe a friend to distract from all the pokery.
Sorry I'm not much help, but I wanted to lend my support.