I want to take lessons, but I admit to being kind of a wuss at this stage of the game. I'm scared to perform in front of people until I somehow get confirmation that YES, I can sing.

That in mind...

Is it normal to get a 'head rush' kind of buzz from really belting one out? It's kind of like when you hyperventilate for a while... the hands tingle a little and the brain kind of shifts a little. Is this okay or is it improper breathing?