I'm 34 M who has Bipolar and Epilepsy. Right now I already have a family.

The problem is, when I angry to my wife, it isn't normal. I could punch a wall, a door, BUT i never do any direct violence to my Wife. As you can imagine, this is pitiful to my wife. But i cannot control it, it just spontaneous happening. :(

My question: is this because of my Bipolar? Epilepsy? or I just having a bad character?