What do I feel?

Sometimes I feel like a song
Sometimes a beautiful song, other times an overwhelming wreck of a song

Sometimes I feel superiority to others
Sometimes I feel lower than dirt

Sometimes I'm mellow and monotonous
Sometimes I'm hyper and anxious and paranoid

Sometimes I'm devious, callous, and shallow
Other times I'm sensitive, over dramatic, and emotional

Sometimes I feel none of these, sometimes all.
So when the question is asked, "How do you feel?"

All I can say is:
Nothing. Or . Everything.

It seems fictitious, but it is indeed real.