To quit? Or not to quit?

I've become very uncomfortable while working. I work in an after school program and at the end of the day I'm just in all kinds of discomfort.  I told my job I would work until Thanksgiving break, but now I'm thinking about leaving at the end of October, which would be three weeks earlier.  I have to quit because my hubby and I are moving about 2 hours away for his job this coming March... Idk what to do... Should I stick it out and work or be comfortable my last month and a half?