Offspring — Gotta Get Away (ver 2) Chords

I only know the chords for the intro and chorus right now
but im working on the main riff. I wrote to use G but i prefer G2 
for a more rich acoustic sound personally.

Also This is what i am calling A5. i couldn't find another name for it.

  e———5——————
  B———5——————
  G———x——————
  D———x——————
  A———x——————
  E———x—————— 
                _
Intro: G/ D Em   \
                 x2
       G/ A5 Em _/

Chorus: 
Em          G             D      Em               G                         
Sittin on a bed lyin wide awake. theres demons in my head and its 
            D         Em               G                    D
more than i can take. Think i'm gonna roll but i think its kinda weak. 
Em          G                    D     Em      G          D      Em
Sayin all i know is i gotta get away from me. Gotta get away from me