Point at the body. 'Your hands went up just then', or 'you put your head in your hands', gives a feeling something solid to stand on.

What the research says

Imaging work on breathlessness and pain found both were handled in insula, cingulate and amygdala regions already known for their role in fear and anxiety, one reason bodily signals and emotions are so hard to prise apart. Worth holding beside it is a cross cultural study in which people's sense of their own heartbeat matched the real thing poorly, even in a culture that emphasises attending to the body. So the body is a genuine source of information while your reading of it can still be wrong, which is why you ask rather than assume.

Strength of evidence: one line of research. A single study, or a theoretical account.