I'm three-faced.

Society often expects us to act as "different" people at different times. It is totally normal to feel that you have multiples faces (or sides). It is not normal if you have "black out" periods where you can't remember anything in between though. That could be indicative of a mood disorder that is in need of treatment (mood disorders are pretty normal though, so don't be afraid to get help if you think you need it!) Otherwise, join the crowd as we all go through our days playing charades and pretending to be many different things to different people!

Sounds like you have split personality syndrome.

See a psychotherapist. Concentrate on being yourself, try to be more moderate and consciencious of WHO you are. Be yourself and not what others want you to be.

I have the same thing. Aggressive when i feel on top of the world and shy and weak when im in a ton of shit.

you honestly think people are meant to be as simple as 'two sides'?

It's normal it really depends upon ur mood lack of sleep ur easily angered, just got done given a 30 min speech for a class your prolly feelin pretty dam good, before the speech u were prolly nervous as he'll especially if it was ur first college speech. Yeah I'm basing all this off recent happenings in my life. It's 100 percent normal.

PMS?

This is totally me

this is so like me its scary, i think its a fairly common thing caused by anxiety or frustration. the way i deal with it is when i get angry i try to chill myself out and think of good things, doesnt always work though im sure you know how hard it is to break from a bad mood. the 3rd one you said about being nervous and in another world i find so hard to get away from, you just have to sit it out. i dont think we have any kind of mental dissorder although some may say bipolar or schizophrenia..just be who you want to be :)

Guessing that people other than yourself have that same experience, it's normal. I'm in the same situation as you. :/

This is seriously just like me...

give them names. like tom, sven, and kilzor

I don't think of myself as having three sides. I normally think of myself as having such a blurry personality that it's almost arbitrary.

welcome to life as a human

i fill like a million different ppl all balled up into one oerson......me it is totaly normal but it can be stressful. you never know who you realy are try being alone for a while and just clearing you mind. that always helps

I'm the same...but my personalities tend to talk to eachother...and argue over my decisions so I think you're normal but I'm um...well that's a whole other story ^_^

This is normal and fine, as long as you don't allow them to become seperate individuals you must always remember that they are still you :)

i am exactly the same

As long as all of those personalities know they are really you, I think it's normal.
Actually, I think it's even inciteful. Most people don't even notice their subsets of personality traits.