Two new feelings, any input?

Sorry if this gets drawn out, but as most of you know, sometimes this journey is hard to put into words. The past couple days I’ve experienced some new sensations. I’m not really worried about putting them into a defined category, but just interested in others input.

I found that if I start on my side, I can get sensations that I assume are considered P waves. They are full body tingles/shivers that resonate from my pelvis out to my limbs. These are very short, and usually only occur near the end of an exhale. However, the other night I was able to Get these waves to last longer and longer. Eventually they continued for both exhale and inhale, causing a couple minutes of full body tingling. At no point was I doing contractions, just breathing. After two cycles of extended waves, I turned to my back, feet flat and knees bent. This position usually produces what I think are dry O’s, involuntary contractions and pelvic thrusts. To me, they have a lot of the same feelings as the second or two of a TO, but last a lot longer. Well, after about the third dry O, I experienced another new sensation, this one is very hard to explain. I went from a dry O to a state of almost ultra relaxing. Something was going on, but I couldn’t figure it out(or still can’t). I don’t believe I was having any contractions, but like I said something was happening. I can’t even remember any particular physical pleasure. I felt like this for what felt like a couple minutes, unable to move. Is there such a thing as a mental/spiritual orgasm? Hopefully someone else had some similar experiences. I’m just glad I started this journey.