Thats a great one rocky.
That's exactly how I have felt since becoming mercury poisoned.
It feels like living on the edge , close to death.
I quote one other thing should of been added :
Your mind plays tricks on you a your brain suffers.
also
Your doctor thinks that it's your own imaginary illness.
As for myself i'm just starting to feel a little better finally,
as I use PCA-RX chelation and Lipoic acid to detox.
Hope all is going good with you, take care.