It feels like every part of me that contains emotion has been given third degree burns, whilst someone repeatedly pokes the charred skin with acupuncture needles. 

This is what I can never explain to non-BPD people. It’s not that I over-react; I actually feel every emotion to such a large extent, they can’t imagine. 

Happiness is euphoric heaven, but sadness is like having my soul burnt with a hot poker.

And it’s all so much worse after a high, because the difference is so stark.