I had had depression all my adult life but wasn't treated with any med for that until my 40s. It was an antidepressant (high dose of Celexa) that kicked me into a psychotic mania. Plus oodles of job stress, and many other kinds of stresses. I had also had a concussion a few months before that.

I was abused as a child. My father is and was an alcoholic with bipolar. I don't drink.

So there are many factors that contributed to my falling in. Anyone of them could have tipped me over the edge from basically well to definitely unwell.