Is this normal? Relationship help?

My best friend and I have just recently (a couple days ago) shared our feelings with each other, and he's changed the way he talks to me (it's like a newlywed couple lol). But now, everytime we talk (which over the past two days has been on FB; I don't seem him that many times a week) I get really nervous, and I'm always shaking. I'm afraid this will translate into crazy nervousness today when I talk to him face to face. Is getting really nervous normal? Is it just a part of the process? and Will it go away? Thanks in advance!:D