Myself, my sister, my brother, my husband and most likely my son have been DX bioplar. all of us were not DX lightly. My brother was in jail when he got diagnosed. My sister had a nice 6week stay in the hospital. My husband was mis DX for years. Me I got caught being hypo manic (more than once) because I thought that was normal. I'm sure both my parents have been DX and my grandma said I she wished there was medication back then. When she died we found depakote and cymbalta in her bathroom hidden,.

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It looks like over DX. My Dad feels its over dx'd and it maybe in people that have family history's of bipolar but considering I'm the sane one in my family I don't doubt it runs strong in my family.

Generally it takes a lot to get dx'd including family history.

Short answer maybe when there is family history but generally no.