Invisible Man by Ralph Ellison

Then I was awake and not awake, sitting bolt upright in bed and trying to peer through the sick gray light as I sought the meaning of the brash, nerve-jangling sound. Pushing the blanket aside I clasped my hands to my ears. Someone was pounding the steam line, and I stared helplessly for what seemed minutes. My ears throbbed. My side began itching violently and I tore open my pajamas to scratch, and suddenly the pain seemed to leap from my ears to my side and I saw gray marks appearing where the old skin was flaking away beneath my digging nails. And as I watched I saw thin lines of blood well up in the scratches, bringing pain and joining time and place again, and I thought, The room has lost its heat on my last day at Mary's, and suddenly I was sick at heart.

The clock, its alarm lost in the larger sound, said seven-thirty, and I got out of bed. I'd have to hurry. There was shopping to do before I called Brother Jack for my instructions and I had to get the money to Mary- Why didn't they stop that noise? I reached for my shoes, flinching as the knocking seemed to sound an inch above my head. Why don't they stop, I thought. And why do I feel so let down? The bourbon? My nerves going bad?