just orgasmed and now I feel like I'm about to pass out?

I'm honestly really scared. I was riding my boyfriend for like 20 minutes and I'm pretty sure I had two orgasms, the last one was probably one of the best I've ever had. When I stood up to go to the bathroom I noticed I felt super dizzy and that my hands and legs are all weird and cramped up. I'm sitting in my boyfriends bathroom right now terrified that I'm going to pass out. Should I be worried??