This is one reason this board is here. You will find understanding, emotional support and lots of information about bipolar. Like you gave a lot of examples of mania in your post; the irritability, lack of impulse control, insomnia, etc...I would recommend you get a referal from your doctor for a good psychiatrist for an evaluation. In the meantime, there are a lot of good articles about bipolar on this site. There are also a number of quizes as a guide on different disorders. And then of course there's us...always here, always reading, feeling, sharing. Goodluck! Keep posting.