I'm not going to diagnose, as I can't. Not sleeping and still feeling great is not the only symptom for determining if one has bipolar. Rapid mood swings and thoughts and irritability are symptoms, which I have experienced, and also experience even when I am medicated. When I am hypo I have trouble sleeping, but I will not allow myself to go without sleep because when I realize sleep is becoming a major problem I contact my pdoc. There is a list of symptoms for bipolar and we all experience everything differently. I personally would go see someone else.