Chords:
C-----------x 3 2 0 1 0
Csus2-------x x 3 0 1 1
f7- --------x 0 2 0 1 0


Intro:
(F Csus2) - 4 times

Verse 1:
 F   I feel betterCsus2,    
 F   I feel betterCsus2 now you've [(F)-]gone
-F Csus2
I got better,
 F   I got better,Csus2 I got s[(f7 )-]trong 

- Fm7 -
And I feel better,
- f7 - (Csus2)-
I feel better now there's nothing wrong
- Csus2 -
I got better,
- Csus2 - (F)-
I got better, I got strong

Instrumental 1:
- F Csus2 F Csus2

Verse 2:
 F   Tell me somethingCsus2,    
 F   Tell me somethingCsus2 I don't k[(F)-]now 
-F Csus2
Tell me one thing,
 F   Tell me one thingCsus2 and let it[(f7 )-] Go   

- Fm7 -
I've got something,
- f7 - (Csus2)-
I've got something heaven knows
- Csus2 -
I got something,
- Csus2 - (F)-
I got something I don't know

Instrumental 2:
F Csus2 F Csus2
F Csus2 F F
f7 f7
Csus2 Csus2

F Csus2 F Csus2
F Csus2 F F
f7 f7
Csus2 Csus2

F - last 1 strum.
======================================================

P.S.
If you have second guitar you can play the whole song repeating this -
OR you can play intro like this with 1 guitar -
F Csus2
e|----------------------------------------------------|
B|---------1-----1-----3-----1-----0/1----------------|
G|------0-----0-----0-----0-----0---------------------|
D|----------------------------------------------------|
A|---3------------------------------------------------|
E|----------------------------------------------------|