TLDR: Anybody here misdiagnosed with bipolar that later learned they were struggling with a different disorder?

I was diagnosed with bipolar 2 in 2012 after living through other diagnoses since I was in elementary school. I was in a bad state back when I was diagnosed: dysfunctional family, lack of real support, alcohol and (hard) drug dependence, financial instability. *I don’t doubt my bipolar diagnosis* BUT! I feel there’s either a co-morbidity issue going on I’m not aware of, or a straight up misdiagnosis. I am fully aware of the “don’t doubt your diagnosis, just take your meds” perspective in this sub, and am hoping to hear from people with a different opinion. Has anyone here been diagnosed as bipolar then told it was a different issue going on? How did the initial diagnosis come about, and how did the “updated” diagnosis happen?