I know around 30 I used to have times when I would wake up massively stressed, clenched teeth, mind racing a thousand irrational, projected thoughts and shallow breathing. Especially after a night of drinking. It worried me enough to go to the library and seek out more information!
I had zero game back then, was reactive not proactive and knew nothing about self development.
I was clearly stressed, it was before I knew about taking control, gym, self development etc
You always strike me as very laid back about women, have you got other stress?
Are you using gym, cognitive techniques and have you got other stuff going on?
I have found the 'Alexander technique' to be an effective, immediate stress combatant too - worth googling.