Hi Ralph: my first thought is that you had a reaction from steroids, but there is nothing in your profle about using them. You could try antidepressants and/or counseling. I have used lexapro in the past and it helped me.
I keep a journal. Although I may appear level headed on my posts on line, in my journal I use multi expletives, a lot of upper case letters and exclamation points when I descibe my feelings about my cancer and how it has changed my life. They are just brief entries that pop up every now and then. I write about other stuff too, mostly just my day's routine.
I am glad you did not beat the s--t out of those people.
don M