I can state that in my sister's case

That it is not known were the bipolar came from. Neither of my parents
are or were bipolar. Or had or has depression. My father has been
gone for over 19 years.

We are not aware of my grandparents or anyone in their families ever
having these issues either.

So its just not known were it came from. Its possible that her's is the
first known case in the family.

But its not the last known case in the family.

So it is now for sure something that is genetically going to be possible.

My son's at least two of them have some form of the problems, or have
had at some time. One will never lose a form of it. The other one
will probably have it come and go from his life.

He will only tell me or someone when it gets so bad that he is afraid
that he can't handle it.

The third, we can't tell if the depression and anxiety is from that or
the epilepsy which is still genetic.

So its all in the family either way.

Donna