Does anyone else get a flush that radiates from the center out to the tips of your fingers and toes? It's a completely physical sensation.

There are physical sensations every time I smoke DMT. My body gets warm all over, most noticeable in my limbs. They get ‘heavy’.

And when it comes to smoking changa it feels as if a wave flows through my body from head to foot. When that occurs I just know it is the Caapi spirit. Often I also have that nice feeling in my stomach, as if my stomach is cleansed. All in all the feeling is blissful.

I think the feeling that arises is different from person to person.

I don't particularly enjoy the physical sensation of smoking straight spice, or at least the come up part of it. It's like every cell is vibrating but I can barely move correctly Going to be making a couple of my own change blends here soon, though, hoping that will smooth things about a bit.

the initial stage of my first breaktrough felt like an electrocution....extreme agonizing teorror inducing bodyload

This is precisely my experience. I don't mind that part so much. The part I usually find uncomfortable is the comedown, when my body and normal consciousness reassemble. Maybe 1 trip in 10 this part feels blissful, the other 9 I feel quite a bit of discomfort.

just do small puffs you don't recognize instantly... works well with changa, it could accumulate very smooth if done in the right "intervals"
if you've arrived on a distinguishable level you can load more and it's not that unpleasant!
for me it sometimes really overwhelming and it can be painful to a certain degree if I start too straight...

Lowtones:

That is a great description of what salvia is like for me. It’s focused above the neck and is supremely uncomfortable.

I can remember one experience where I got a warm sensation all over that seemed to radiate internally to external. One experience in particular felt like a very warm ball went down my spine and stopped about pelvic level.

A breakthrough dose would have no body sensations what-so-ever. No bodily awareness at all, in fact... Breakthrough dose would usually have an audible tone that hummed and sounded like going through a tunnel or wormhole or something the first few "seconds". It sounded like it came from either everywhere or internally and slowly pulsated and got louder until I was fully in the headspace.

How about sensation that you have pissed yourself, does it count?

I feel all warm and vibraty as well but the oddest sensation I had was in a 2nd session in one night it was like these elf entities were pouring straight energy down my throat, energy and knowledge in a rainbow form but all white energy..

it felt like a flow of energy and liquid flowing down my throat into my body and it felt so odd but also so good....