from me to you my friends & passer by: i always remember this.. this is one of my principles.. it was based on my experience.. when my mother died of breast cancer few years back i cried almost every night... then the next morning I could do my task alright not to be too emotionally withdrawn to the world around me, it keeps me focus until it made me feel better.
Just let it out, cry it out, then the next day you'll be okay. :)