Yes, my middle sister, I swear if she saw a pdoc she would be dx with bipolar 1 in no time.

My estranged father was dx with bipolar 1 a few years after I was, he had no knowledge of my dx or life for that matter, so I do think the family connection can certainly be there.

In my friends not so much, I don't really have many tho, so not much to go on there.