You want to know you are not alone. Very well written, though I would have personally put a stronger poetic edge to it :P Even if true.

"I think everyone else was annoyed." This confused be 'cause I didn't who the everyone was... I mean who would be annoyed that you're 2 hours early? How does that affect anyone but you?

"I rode the wrong jeepney home." Ok just curious, are you from the Philippines? My step-dad is and he has jeepney pictures and little figurines and stuff... I'm wondering if it's the same or something different.

I like the ending because it is especially intriguing. The only thing I didn't really like was in the earlier parts what you italicized seemed a bit random. Other than that nice job.

Psychologically speaking, the way you describe it (hearing noises and voices) sounds a bit like paranoid schizophrenia.

However, I tend to relate to this, especially when I'm having a bad day. =/
Or maybe if I'm feeling uncomfortable or self-conscious, I get the feeling that everyone's eyes are following and their whispers are about me.
It's definitely not something fun to go through.