I have been experiencing the same feeling, only by me it is at the side base of the neck
(NOT in my throat), where my right shoulder
meets my neck
. It feels like a tight, pulling feeling at times, and like at hard painful lump other times. It is not able to be felt externally despite much poking and prodding. My physician says that it is not a lymph node, and that if it is a muscle it is a more internal one, since it can not be located from the outside.