It is a feeling similar to being hung over but i didn't drink. In my case it is caused by I bigger poker loss that I feel comfortable with... The only other time I have had this feeling was when I was a kid, after I got into a fist fight with another kid. Or on report card day before my dad came home from work, and I knew the belt would be paying my ass a visit.. I call it the "crazy feeling" anyone know what I'm talking about or have a name for it... I also creatively call it "feeling like shit"