could be one of the reason for this pain.
As the pain is migrating and is not increasing at one place.
Due to stress the neck muscles and the jaw muscles go in spasm and so they pain , even during night while sleeping when we get dreams and if they are not good there is bruxism
ie involantary movement of the jaw and which may pain later.
YOu can contact your ENT specialist
1. examination of throat to rule out local pathology
2. Get anxiolytic medication