Yes, actually.
I always have known depression was my biggest issue, and PTSD was probably at the root of much of that issue. At one point, however, my pdoc labeled it bipolar 2. I did a lot of reading trying to figure it out. He treated me with meds normally for bipolar (but they honestly didn't do much for me).
And then after about a decade of intensive and very effective therapy, I started to heal. I've been a decade now without a need for therapy or medications. I occasionally have a bit of the PTSD symptoms come up, but not to any extreme, and any depression I deal with now is situational, mild, and brief.
I am pretty convinced, in retrospect, that PTSD/depression were/are correct diagnoses, but the bipolar 2 wasn't correct at all. What the Pdoc was seeing was recurrent depressive episodes subsequent to the PTSD symptoms I was experiencing.