I've learned to listen to my DH a lot, because sometimes I can't see the mania. I know you probably aren't doing anything you consider self destructive but is it taking any time from your wife or family or things you need to do? Are you still be productive and getting things done or are you escaping it? I've learned that if something makes me too happy over ANYTHING else then it could be a problem and I'm waiting for the crash. I'm not diagnosing, but just putting it out there since you asked.