The unnamed feeling is the feeling of wanting to drink alcohol, dealing with withdrawls, and the isolation you feel when you realize you're an alcoholic. He hates himself for it, he can't sleep without it. Swallow evil - drink. Lose myself in a crowded room - isolation. I rage, glaze, hurt, hate - withdrawl. Wait for this train, toes over the line - so very tempted to drink. It's something that he'll deal with for the rest of his life.