wanted to add something because I noticed your title of the thread is poly fragmented experience.....

here where I am poly fragmented .....used to.... mean a person had alters that were alters of other alters and that there was a certain order to the alters, this ordering was called prioritizing.....

example.....

I amanda dissociate during extreme trauma which caused Thelma to become who and what she was (her sense of agency)

Thelma while going through extreme trauma dissociated which caused Pink to become who and what she was.

Pink during extreme trauma dissociated which caused Green to become who and what she was.

Thelma was more important and designated first in line over Pink and Green.
Pink was more important than green but not as important as Thelma
Green was last in line, in the grand scheme of things on mental health paperwork Pink and Green were disregarded as just fragments, not important and not worth wasting therapy time and resources on.

With the new mental health system that America changed over to in 2013 all alters are now considered important and essential to the system, none are designated/ prioritized as more important than another. the alters that were just a bit of emotion are now just as important as the one that do the daily living, go work, take care of the family...

in other words the term poly fragmented is being replaced by other terms now like "sense of agency" which better describes the fact that all alters have their own way of being, one is not more important over the other, how much control they have, each ones job, purpose and reason for being and much more.

my point here where I am poly fragmented doesnt go by bodily sensations of feeling lightening, it was just a way to explain which alter came from who and why. which ones were more important than another, where each one fit in.... that kind of thing.

I did have the kind of system where some of my alters were created when I was dissociated and an alter went through the extreme trauma and they could not handle it so they dissociated which created an alter from them that could handle that kind of trauma. but none of my alters were considered more important than another, and so on after the change over to the new mental health system in 2013.

my suggestion since you are having lightening like feelings and so on contact your treatment provider. they will explain what they meant when they diagnosed you as poly fragmented and whether this feeling of lightening is part of it for you and how to best handle it....