I know I have said this before, but I used to have anger issues, especially when I was younger. After a lot of soul searching I realised that I would let loose with my anger when I felt powerless.

After I had that eureka moment it became easier over the years to work out better strategies for dealing with the issues making me angry.

I also realised that I cry when I am angry, but it's because of the effort of trying to hold in my feelings. Still a link to powerlessness, except that I was then trying to redirect the anger into something more productive and useful.