Ouch!

As usual I was doin all the uploading and stuffs like that in the office, with my mp3 on. (btw, it's wokring now, and i hope there'll be no more problems) My supervisor suddenly drop by my cell, and tole me that i looked a bit darker and flushed compare to the usual me. Gosh! I'M DARKER? How could it be! I've just walked under the sun for less than 30 minutes today! How could this happening to me? I'm already dark, now when i'm darker, i just don't know what can i do alr. I think every night i'll do whitening mask, that should help a little bit i guess.