Your wording sounds perfectly fine to me, blue. While we're talking about this topic and silly little problems, outside of the bipolar circle, people will be talking about and chasing after the awesome creativities, euphoric high or any super human abilities that might be associated to certain mental illnesses by taking supplements or illicit drugs, and folks in Nofap circles are also going after hypomanic stage in their lives.
"The part of me that's being bipolar", this doesn't sound too weird to me, less weirder, and I can make it lesser, and the question will disappear into thin air, or not. As long as I don't forget about the part of me that's human, and think to myself, I MUST enjoy being...
Y'all being acting like too bipolar, stop it, that's just silly to me, I'm outtie.