Hey Heartbeat,
Are you taking anything that may be affecting your metabolism for weight loss or maintenance? Are you taking coffee, soda or anything with caffeine in it?

As AlexK stated yes it will if you let it go. Very wise words indeed. Consider this if while in the moment of the itch you start to give it your attention; at that moment are you not feeding energy to it? Kind of like when the mind babbler distracts the meditation and you go off with the distraction rather than bring the focus back to center. Trust it will subside and it will, ask for help to remove the experience so you can move on and pay it no more attention. I know easier said than done but persistence will win the race.