Orgasms and

I just had one of the best orgasms in my life last night. For my birthday. And I don't orgasm regularly. This is my first boyfriend that has managed to get me there and boy oh boy do I enjoy it. Anyways, my clitoris was suuuupppper swallow and puffy afterwards and I've never experienced that before, is it normal? Its gone away since, but surprises and scared me a little. So i'm curious now.