Hey, I just wanted to let you know that I have the _exact_ same issue as you since 2 years. It was much worse than what you described 2 years ago. Now it's just very annoying.
The diagnosis I got from my therapist is PTSD from my chikdhood due to the strong connection between stress and body.
The only thing I found that alleviates my symptoms short term is lots of Buddhist meditation (1-2 hours per day).
I wish you all the best and thank you so much for sharing.