Lack of Caffeine

As I fall away shaking
And you stand there unable to make me feel better
And I hold the tears in
You say whatever you can to make me smile
And though the laughter is produced
The feeling of despair fades only for a second
 And I curse myself inwardly for smiling
When my heart tightens and my body goes limp with disappointment
You don’t know what to say to make me understand
I don’t know how to understand you
I can’t make you change your mind.