I'm also sleep better, bizarre. I have a strange sense of detached wellbeing generally since my ability to feel things has started to return, MAY IT LAST XD.
I'll elaborate a little on CPTSD and why i think it's important here.
Complex ptsd is defined, unless i'm mistaken, as a prolonged period of stress/trauma which impacts the nervous system leading to myriad "vague" problems, as opposed to regular ptsd which is a short burst of severe trauma which imprints the nervous system heavily and severely over a short time. The analogy that comes to mind is the difference is your brain being pressed in with a clamp in cptsd and hit with a hammer in ptsd.
There is no actual difference between the two in reality, however the symptoms express themselves quite differently.
They both however respond to triggers that are reminiscent or are EXPERIENCED to be reminiscent of the original wound, the sympathetic nervous system is heavily involved as far as I know.
My emotional dysregulation problems due to CPTSD have been dampened significantly along with the POIS.
The nervous system is at the core of your being, and the sensory inputs make up the experience of being alive.
The way i personally look at supplementation or taking meds of any kind is that at their core they are modulating the nervous system.
My intuition is that disorders of sympathetic and parasympathic balance are at the very root of at least my form of POIS, I've thought this for a while and I would argue possibly every form due to my views on biology.
Dietary and non dietary inflammatory factors, poor posture and nerve signalling due to muscular imbalance or suboptimal bone structures and compensatory muscular distortion, purely genetic problems, epigenetic influences and psychological trauma. We are an integrated whole system.
I'm not sure any of this stuff will make sense to anyone, there's always a possibility i'm just talking nonsense XD.
The only thing i'm quite sure of is covid does something to the nervous system.
Good luck and if anyone wants to discusss anything i mentioned please reply and ill get back i've spent years researching, however Im aware of how little i really know compared to some on these forums.