Had an interesting experience last night...

So, before I explain what happened I would like to give a little context to my situation. Here are some stats:

-m/20
-2 months of aneros use, 2-4x weekly

Despite having not experienced a super or dry orgasm, I have recently discovered an interesting sensation relating to aneros use. This experience was the result of a five day abstinence from ejaculation. The intent was to ratchet up my arousal level to increase the intensity of my sessions, which seems to be common advice on this forum. Of course, during this five day period I enjoyed increased sexual energy and sensitivity in my prostate and other erogenous zones during my aneros sessions. By the fifth day I had enough, and had an incredibly intense ejaculation at the conclusion of my session.

By the time I was finished with my session, it was 2 am in the morning. I had achieved sexual satisfaction and was completely drained of energy. After I slipped into bed I began to experience the "day-after effects" known as butt buzz etc. A warm, calm, and relaxed feeling enveloped me. I could feel my prostate tingling as i began to contract and perform kegels. The pleasurable, relaxing feeling spread slowly throughout my body and began to intensify as a pleasure spot became apparent deep within me. It felt as if the pleasure was emanating from along my lower back or somewhere close to the tailbone area. The pleasure intensified and spread up my spine and over my head. No contractions, flailing, or thrashing around occurred. I was completely still, as if i was in a coma or was sleeping. I was now it a state of total relaxation and bliss that encompassed my entire body, i.e. a full body orgasm. To be crude, it felt as if my whole body had became the shaft of the penis and was experiencing calm, gentle and relaxing pleasure.

This feeling lasted about two minutes, then subsided. After another five minutes, I experienced another one of these full body orgasms. However, the second one lasted ten minutes and was slightly more pleasurable. After conducting some research, I believe this is known as a 'calm seas' orgasm. What I found interesting was that this occurred without the aneros present; a so called 'anero-less' session. I was not expecting this type of result from the aneros. So far the aneros has gone above and beyond my expectations, and I am still in my formative months as an aneros user. I would love to experience this feeling again. I guess what I would like to know is: How often do other users of the aneros experience this sensation? How often? Can it be triggered at will after enough aneros skill has been attained?

Thank you and goodnight.