I think emotions in the right or wrong setting probably do cause pain or other stimuli. Something related to this I often experience, and I think everyone does to some degree, is if you concentrate on an area of your body hard enough, it can start to itch or ache. I get this a lot if I 'think' at my spine or arms.
Emotions wise, I occasionally go through short-lived spells of intense loneliness. When it does happen it brings to light a whole new meaning to the term 'heartache'. The feelings seem to cause intense chest pains. It should be noted however that I do suffer with anxiety and frequently get chest pains since recovering from a previous illness, so the emotional stress does seem a natural if uncomfortable physiological response.
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On hiatus thanks to someone in real life breaching my privacy here, without my permission! May be back one day. +tips hat+