I don't know if I am bipolar and I am going to discuss this with my psychiatrist but I wanted to know, is it possible to cycle in the same day? I felt kind of ultrahappy this morning, positive and lots of energy and then started crying after lunch and can't seem to do anything...I mean, where does mood swings end and bipolar start... Can you be really moody and not be bipolar...just some musings, would love to hear anyone's response on the subject.