Curmudgeon, Electrical Engineer, Guitar God Wannabe
Join Date: Jan 2012
Location: Where the mighty arms of Atlas hold the heavens from the Earth
Posts: 3,403
UBB...
Bipolar Disorder is a serious mood disorder. It is possible, I suppose, for him to have untreated Bipolar. What sounds more likely to me is a character disorder like Borderline Personality Disorder, especially given your description of his rage.
In either case, you need to do what you need to do to protect yourself. Convolve mental health issues with alcohol abuse, and you've got a time bomb. You need to be far outside that blast radius when he goes off.
Again, my condolences for the loss of your father. Once you get settled away from your ABF, you may want to see someone to help you process your grief and sort things out. In the meantime, visit us as often as you can and post when you have need.