What do you do when you get irritated and over-sensitive over something that actually meant nothing to someone?

What do you do when you have so many things bottled up inside you but those are words that are never meant to be heard, written, or spoken?

Nah, I'm not confiding anything into anyone, not even my closest friend or the closest person. Self-denial? Perhaps. You know sometimes you pretend to be happy just to make someone happy BUT he/she is already getting on your nerves and yet you just have to bear with everything. You don't wanna make a fuss out of something trivial and make anyone unhappy.

Live life, love life? Let me think about it, again.