(not) dancing through chemo

I was one of three dancers who were supposed to perform at a local restaurant last night, but the owners cancelled just after we arrived. This is not okay, by any means, but I have to admit I wasn't sorry. I hate it that I would rather sit at home streaming episodes of Monk on the Xbox than dance, but that's where I am right now. Dancing would feel great and I know it, but I can hardly bring myself to make the effort beyond my one drill class a week. Am I just physically tired? Depressed? Either way I know I'd feel better dancing more often - practicing a lot more often, and performing sometimes too.