According to my neurologist it is an emotional thing.
This monster we all deal with can make our emotions get all screwed up in many ways.
I'm always having bouts of emotional outbursts that seem uncontrollable. I'm finding myself apologizing to folks I get loud and angry with asking for some understanding. Understand that sometimes I can't control myself. I often keep to myself so not to offend anyone.
I just wanted to let you know you're not alone...