Your comment reminds me of the sensation I get in my legs when I watch someone jump from a significant height and land on their feet. It's the same feeling I felt when I jumped from more than 4 feet or so and landed on my legs as a child on the playground. Not really a pain, but a sharp jolting sensation that ran from my feet up my legs. Decades later, it still happens when I am sitting still in a theater and I watch a character jump and land on their feet in a similar manner. It's a real sensation.

There is a mind-body connection and the mind can induce nervous system sensation when no physical cause is present.