Your treatment seems to be helping a lot. Why not focus on the treatment instead of the label? IMO, we should treat the symptoms, not the label. I understand your frustration with the diagnosis, though. You can always get a 2nd opinion if you want to see if bipolar 2 fits you. The person who's giving the 2nd opinion can also explain "bipolar" to you and you can have a good, intelligent discussion about it.

btw, welcome to the forum; I see you're new