I have a CPTSD diagnosis and my hypervigilance comes and goes. It always has.
When I am experiencing an emotional flashback, I am nearly constantly hypervigilant.
Sometimes a little something can trigger me into a hypervigilant mode and I can shake it off quickly.
If I am tired or run down or stressed out, I find I almost default back to hypervigilance. Which is draining. It can be a yucky cycle.
I notice the more I grow and progress with therapy, and in life in general, the less time I spend in a hypervigilant state. I am triggered less and less often too. When I was first diagnosed I was in a hypervigilant state most of the time. Now I would say I spend 10% or less of my time feeling that way. Despite the progress I have made, as of last month, I still fit the criteria for having CPTSD and still qualify for therapy to treat it. I hope that helps you somehow.
When I am experiencing an emotional flashback, I am nearly constantly hypervigilant.
Sometimes a little something can trigger me into a hypervigilant mode and I can shake it off quickly.
If I am tired or run down or stressed out, I find I almost default back to hypervigilance. Which is draining. It can be a yucky cycle.
I notice the more I grow and progress with therapy, and in life in general, the less time I spend in a hypervigilant state. I am triggered less and less often too. When I was first diagnosed I was in a hypervigilant state most of the time. Now I would say I spend 10% or less of my time feeling that way. Despite the progress I have made, as of last month, I still fit the criteria for having CPTSD and still qualify for therapy to treat it. I hope that helps you somehow.
Ooof! Sudden, visceral understanding. 
I fantasize about running my own group one day for people with c-ptsd! I wish I had the resources, time, energy and self discipline to invest in doing more creative things right now. I know from experience how cathARTic it can be! Do you know yet what your first project, first step, first medium used is going to be? I am excited for you! (My inner child is grinning and giving me a picture of splattery warm mud hitting the pristine side of one of those big metal shipping containers. A memory? A wish?) I'm feeling inspired to maybe have a bit of free flowing creative time tomorrow and see what transpires. Thank you for your super inspiring and affirming post!