Wolfgang, often we have buried stuff for so long that it eventually comes to the surface. Those things just pop up out of nowhere and we erupt. Sounds like baggage that was buried and not dealt with. The good thing about anger is it shows us there is something wrong so we can deal with it. Anger can be turned into a motivator. People challenge us and they gear us up into high gear, at work for production or in social circles to get more involved. Talking to a therapist sound likely to be most beneficial. Hang in there, it does get better, tc