Feel your thoughts in your body .
Everything we think , feel or allow to intrude in our minds has a bodily response, this is tension of the tissues somewhere , muscles or in the viscera.
To be able to be aware and feel this you need to go into a mindfulness state and not allow any thoughts in . When thoughts do intrude feel how your body tightens or winds up .
Conversely when you follow a thought feel the emotions of it, you then sigh and the body unwinds and you feel a release.
Some people are very good at perceiving this winding and unwinding . You can train yourself to be aware of it.
Too much intrusion on you of others peoples angst and thinking has a response in your body .
Perhaps always be aware of what you do not need from sources outside of yourself . You have enough to deal with with your own thoughts and emotional responses, which you can clear and heal if you pay attention .