Liz, maybe by way of coincidence...
When I was going through the toughest, most stressful stuff, I was fine.
It was after things started settling down a bit, that I started to feel funny (& therefore had my pressure checked).
I think there may be something to the delayed reaction as your body settles down (as long as one did not go too far), and the build up of bad stuff starts taking its toll.
Maybe one's body just vibes under pressure, but, eventually, we have to pay the piper.
Just a thought...