Trippin2.0 pretty much said it all. To be bipolar it only takes 1 manic episode, just one. After that you can get hypomanic but your still BP1. Also, hypomanic can also be manifested by extreme irritability, anxiety, and rage. Does not have to always include elevation. In fact one can be any where in the bipolar spectrum. There are just certain criteria to meet to be classified by a specific one.