Without knowing the full-story it's impossible to judge. But to me it doesn't sound like you're having a breakdown -- it just sounds like you're burnt out. I'd

Without knowing the full-story it's impossible to judge. But to me it doesn't sound like you're having a breakdown -- it just sounds like you're burnt out. I'd take a vacation and clear your head. Go to San Diego and hang out on the beach for a couple weeks, or fill-in-the-blank with whatever you would consider a relaxing couple weeks. Don't think about work, or anything work-related, and just take some time for yourself.