Incredible Experience for Beginner: What Happened?

So I’ve been interested in prostate play for the past few months, mostly involving edging my prostate and penile stimulation at the same time using my fingers. Had some great ejaculations and lots of precum every time. One time I came super hard where the semen flowed out instead of shooting and there was a ton.

Then I got the Aneros MGX. In my 2nd time ever using the thing, I believe I may have already gotten a super-o. I started out by lubing up my finger and lightly teasing my Perinium and asshole until I could feel myself aching to put my finger in. Then I began stimulating my prostate with my finger, but with no penile stimulation at all unlike previous times. I could feel it swell and get warm and once I got more aroused I put in the MGX. Started out focusing on breathing and light contractions which felt fucking fantastic. The sensations built into two moments in which my abs tensed up, my heart started racing and I could feel involuntary spasms in my ass and pelvis. These moments were pretty pleasurable but nothing too crazy, they each lasted about a minute and I had dripped a lot of precum. Couldn’t get the pleasure to get that high again so I just jacked off and had a strong traditional orgasm. But little did I realize I had a lot more fun in store...

After that, I was just laying in bed for 20 minutes and then I could feel my prostate still tingling and aching for more! My cock was hard and I could feel my prostate glowing. I decided to put the MGX right back in and then within minutes of doing contractions and breathing I got even higher with the ab tensing and slight pleasure. After this wave of pleasure slowed down I could feel my prostate really swell up a lot and then every contraction I did felt fucking amazing. I flipped onto my stomach and each time the aneros hit my prostate I could feel electric pleasure inside my pelvis and everything getting hot. I got so lost in the pleasure as it ramped up even higher than before that all of a sudden I realized I wasn’t even controlling the aneros anymore, it was fucking me automatically. My cock got insanely hard and I crossed a pleasure threshold where I felt an intense electric pleasure shoot up my spine, out my cock, and out my ass all at one time. This went on for about 45 seconds until it came down and I saw that ejaculated an insane amount.

And here I am today at work- prostate still tingling and aching for more every so often. My body also occasionally spasming a little when I do contractions.

If someone experienced could direct me on everything that happened that would be great. Did I have mini-o’s? Was that huge orgasm at the end a super o? I realized that they are defined as being dry but this was unlike anything I’ve ever experienced. What about the tingling and aching for more even after I’ve ejaculated, what is that all about?