burning in the chest area and down my arms and alot of pressure in my head and feeling faint

I have been having problems and the doctors are running so many tests and just can not find out whats wrong this has been going on for like 8 years and its only getting worse. I get burning in my chest down my arms pressure in my head and i feel like i could faint i just really want to know what to do to find out whats wrong i go for another test tomorrow they are putting me on a turn table. if anyone knows please help me.

Have you been tested for Murcury Poising, Check out this websight.
(burning in the brain). Have you been to the dentist before this happen to you?

Also, have you pulled any muscles in your neck. This will cause all those symptoms too.

good Luck.