I wonder if my father could have a touch of bipolar. My only sibling is my brother who is 6 years older than I. I believe almost without doubts that my brother has bipolar. My cousin on my moms side has it and my mothers aunt used to hear them talking to her on the radio so something going on there. My grandmother on my fathers side had paranoid schizophrenia and her brother had classic schizophrenia. Mental illness run rampant in my family.... On both sides.