Super-O at 18 + strange dancing?

Hello! It's a bit of a strange post I guess. I have posted about my experiences elsewhere on the internet but a friend/mentor wanted me to post them here to see if anyone has had similar experiences to me. For science I suppose.

For context I'm 18 and have been using Aneros for over 18 months. I have finally had 2 super orgasms in the last month or so. 

My friend thinks there are a few things interesting about my experiences compared to others:

Immediately before the first time I had a super-o I had a tingly electric pleasure that slowly went up inside my spine, travelled in to my skull and felt like it exploded lots of tiny sparks or fireworks in my brain. It felt like a pleasurable fizzing. Then a feeling of dropping extremely fast (common) and then a surging building pleasure through my whole body that led to the super-o. I was extremely calm and still, so so peaceful.

The second time is the strangest for me. 30 minutes before the super-o I had some very intense dry orgasms and prostate orgasms. I had a very very hard erection, it felt like it was straining the skin on my penis it was so hard. I suddenly felt so happy and joyful. But the strange thing is that after the orgasms I started moving my arms in a wavy dance motion, extended away from my body. I didn't want to do this it was just happening to me, so I let it. Then my hands came together with my elbows stretched out to the side, kinda looking like I was praying (not religious!) then I very slowly moved my hands apart and made a big circle round my body with my hands eventually returning to the previous position.

Then I got up. I never get up during sessions. Getting up means the session is over and I didn't want it to be over. I was standing still for a second and then started dancing. I never dance, I never want to dance and I don't know how to dane. I was doing more slow movements. I was moving my legs and hips too, it looked like I was pulling a rope in to my chest. Then I was making more circles. My hands seemed to always want to go back toward my chest or my stomach. It felt like I was trying to pull something in and then expel it? That's the only way I'd describe it. I was slowly grinding my hips and my legs were starting to tremble a bit, like kinda weak. I still had my erection from earlier.

I laid back down and was so calm and still. A little while after I had the same feeling as the previous session. Tingling up the spine, sparks in my brain, a falling feeling and then HUGE amounts of pleasure. This time my body was tensing up and I was writhing around and moaning, there were tears streaming down my cheeks but I didn't feel sad! My mouth was locked wide open too.

Has anyone else experienced this weird dancing? Was it just that I felt like dancing? Is involuntary dancing a thing? It made me feel very silly after.