i'm having a heart attack*
i have the same problem also, i clear my throat and tighten my chest up and it makes me feel like i'm have a heart attack.also my throat gets very sore.
wow- i have what sounds like the same tics…never met anyone else with the same ones! I've never had any doctor say that I would cause any damage to my internal organs…the muscles aren't in with the internal organs so I don't think the tics can damage them :)