I want to throw up. Not need but want.
Really? Why do you want to throw up?
It would be a great release to do so.
It's normal to feel the urge to throw up when sick or after eating bad food, but you shouldn't normally want to do it. Throwing up is bad for you and can damage your throat and also deprives your body of nutrients.
I don't give a shit...
Don't you care about the wellbeing of your body? There are other ways to feel sweet release.