It took almost one year. I was having one of the worst depressions of my life that I couldn't pull myself out of, so started seeing psychiatrist and got on Wellbutrin XL. Fast forward almost a year later, still really depressed, Abilify add-on hasn't worked and gave me unbearable akathisia along with 25 lbs., I'm worried about memory problems so I go get a full neuropsych eval, which revealed my BP. They said BP I but my pdoc says BP II, because my hospitalization was 8 years ago, 3 of 5 known manic episodes were SSRI-induced, and because he'd "been suspecting BP II all along." That comment drove me up the wall....then why didn't you say something sooner, especially when I brought up concerns that I might have BP? Frustrating. So I've had the dx for two weeks on Monday. I still agree with BP I because one of my manias was psychotic, and I've identified transient psychotic thoughts when under high stress. He says BP I is unlikely because it's been a few years since my last mania. But doesn't it just depend? The past few years since literally a couple weeks after my last mania I've been battling hard with severe PTSD and MDD so who knows, maybe that keeps the mania at bay for some reason. Maybe when I can finally get this cursed depression to lift my mania will reappear. Who knows.