Yes, mate. I had it explained to me like a PTSD. If you’re exposed to severe stress, over a sustained period, your brain copes with this, to allow you to survive. Once you “come down” from bouts of this stress, adrenaline wears off and cortisol is left in the body, which can make you feel ill in a number of ways.
One of the most common outcomes is prolonged anxiety, in my case leading to depression. The kicker is that anxiety creates more stress and the cycle can continue.
Exercise is the very best way to rinse cortisol and other hormones from the system. Medication and meditation can help, and getting away from the stress origin is essential. It’s taken me years to improve to where I am now, but I’m less capable to handle pressure, have a short temper, forget stuff, and am generally a less resilient person, I’m afraid.
You’re not alone, and I hope it’s something you and your GP can get on top of