My first session-gctid144649

I'd consider that just plain wonderful! Sounds like an early experience I had back when I was in my mid to late 20s, only I would let the session go for hours, sometimes as long as 9 hours, with my roommate checking on me!

@Drj , from your description, I'd say you had a very good introductory Anerosession.

After I was somewhat relaxed, I played with my nipples and immediately felt my heart beating faster and faster and subtle sensations become a little stronger. I felt a very, very subtle increase in pleasure and it reminded me of the rise in excitement during a traditional sexual response cycle but stopped right before the plateau/peak phase of a traditional sexual response cycle orgasm.

What you described as very subtle sensations are the typical fractal elements which will cycle to more intense sensations as you focus on and allow them to grow. It is important to acknowledge and not dismiss these early sensations as they are the basic building blocks for your future orgasms.

I might have even reached the peak/plateau but it was so mild and subtle that it was hard to tell. I definitely felt strong and pleasurable sensations though that mimicked and had the same blueprint of a standard orgasm cycle with a rise in excitement, plateau and a resolution. It wasn't strong at all but my arousal rose dramatically and was through the roof. I was so horny and it felt good.

Totally normal, but also understand that prostate based orgasms are qualitatively different from penile based ejaculatory orgasms so please don't make the newbie mistake of expecting these types of orgasms to mirror your years of ejaculatory orgasms.

My eyes were closed but it felt like i was wildly spinning and seeing specs. Almost what some may describe as psychedelic but on a much, much smaller scale.

Yes, this too, is a common experience. While it is not certain if an Anerosession induces this altered state of consciousness or if one's self induced trance state enhances the effects of Aneros massage, there is definitely a symbiotic process in effect.

I played with my penis a little but resisted the urge to masturbate. Any suggestions?

I would advise you not involve stimulating your penis for the time being. The basic reason for this is to more firmly establish new synaptic paths for pleasure in your brain. Please read 'cockadoodle’s thread Penis, NOT and 'rook's thread Whole Body/Whole Mind - the mental side & "zoneros" for a little insight.

Would you consider this a pleasure "P" wave or a mini o?

I'm fairly certain you experienced a number of pleasure waves and perhaps a mini-O or two as well, but I hope you don't get too caught up in trying to catalogue all the unique sensations you will encounter on your Aneros journey. It sounds like you're off to a good start on your sensual adventure, just keep yourself open to the experience as it unfolds before you, don't try to coerce the process with your ego consciousness (that doesn't work), "Just Let Go !".
Good Vibes to You !