I discovered a book back in the 90's called "Focusing" by Eugene T. Gendlin. It's about paying attention to your body. Not just the obvious parts - arms/legs, etc, - but including your thoughts and feelings. I found it extremely useful for dealing with nearly any kind of emotional discomfort or stress.

The OP is of a piece of that.

Here's a short 12 minute video with the author of the book describing the process.

https://www.youtube.com/watch?v=Bjhf_qUklSc