Pain

I open my mouth just to shut it tight
I don't know how ill get through the night
The pain I feel deep inside
This I know I cannot hide
Little food that I eat
Because this I can't defeat
I can talk but I'm misunderstood 
To help myself I wish I could
I thought it was a gift but it's a curse
I thought it'd get better but it feels worse
I brush my teeth and spit this bitter taste out
I can't escape this without a doubt
I try to get rid of this pain
But I can't which is that plain
I taste the blood in my mouth
But I know I'll work it out