Its all from past wounds, stress hormones being released into the body, and depression that grows stronger over time when not treated.... when one lives in a chaotic life for so long then they tend to stay and react with in that chaos.

I would say that it is half mental and half physical.... we need to fix them both or we will never be sane. AND - let us not forget the emotional wounds that other people leave from with in.

LoVe,
Rhapsody -