Great progression last few sessions.

I posted a few weeks back about my progress and believe something has clicked into place with regards to my rewiring and journey to nirvana.
I settled in yesterday for a session after abstaining from any self satisfaction for nearly a week and about an hour in I knew it was different as I was feeling more subtle sensations from my prostate. Almost as if it was reacting to been tickled, hard to describe.
Anyway, I have absolutely no issue getting and maintaining involuntarys and they have started leading to leg shaking, and occasionally groin thrusting and stomach shakes. This time I felt it in my face and head, shaking uncontrollably and that pressure in my head like when your straining for a dump. The shaking was pretty extreme with my whole body and a great feeling of a pressure building.
I think I was expecting it or chasing, trying to push it over the edge to what I believe would be an orgasm and it spoilt my stride so I rewarded myself with a traditional o
Does this sound like the precursors to a p.o?
Also I have read much about pwaves people experience but can someone tell me what they are and feel like please?

Shaking, Humping, vivid images and colours in my vision, warming in my groin. Milestone moment. what next?

Used the helix triden syn for about a year now, I was really enthusiastic initially but after stalling my progress I just used it as a novelty during tradition masturbation for the last 6 months or so.

Fast forward to the last few weeks I decided to revisit a structured process and see if i could achieve any type of O from the Aneros alone.

I have a small window of opportunity bi weekly when i have 90 mins of quiet time every afternoon where i wont be disturbed , sitting in a chair with my feet up on my desk. ( yes at work 😉 )

Yesterday I decided that my choice of lube (kY) was probably holding me back and i wasn’t using enough, so armed with coconut oil and one of those syringes that you get with kids medicine I gave myself a 5ml dose and popped in the Syn.

Now normally I would relax and concentrate on my breathing and enjoy some involuntary flutters of my muscles, get sore or distracted at some point and relieve myself traditionally. This time however I really got into the grove and began having leg and stomach twitching while my interior muscles where really going crazy with out any input from me. After about 60mins i was really shaking and I had all sorts of vivid strange shapes and colors in my head as if i was seeing them through my shut eyes.