Strange reaction during and after sex

Hi, I’m 16M and have been dating this girl (16F)for a few months, and it’s AMAZING.

Earlier this week I’ve had this really strange experience during sex. We only do foreplay, for various reasons (neither of us really can, but I won’t get into that) and I only not only don’t mind it, but love it because I think we’re getting great at it, we both have a lot of fun & enjoy it very much.

Anyways, when I was getting jerked off, I had this tingling feeling in my jaw and hands, so much that I couldn’t properly move my hands afterwards. I also had an uncontrollable laughing fit after ejaculating. Nothing that bothers me, I just wanted to know if it was normal or what!

Thanks!!