1999/2000 Toronto, height of the dot com, new grad in a "senior dev" role with no real experience. Our CTO was a paranoid chronic pot smoker who lectured me regularly on knowing the difference between "sharks" vs. "dolphins", our manager, a sweet Hungarian man who excelled in his prior career managing major infrastructure projects, was pulled out of retirement to lead the team and the experience almost killed him...…
I have that same kind of visceral reaction to any thoughts of certain employers that I've had "that" kind of relationship with. I don't think it's "startup PTSD" so much as "dysfunctional employment (or other relationship) PTSD"
I can easily mark the exact moment where my ability to deal with the situation I was in went so far gone that my brain's instinctive response was to just flee.
I've seen this with familial relations as well, which clearly pushes it well into "just normal PTSD" if you can accept that ANY form of PTSD is "normal" (which I refuse, for the record...)
I'm just glad you got out before you actually ended up with permanent psychological damage. This shit isn't a joke.