He has had this for about 3 weeks and doctors do not seem to be concerned about it. He was recently in the ER and had a chest xray and tons of blood work done showing nothing out of the norm. He is convinced there is something wrong with him, and because this is in an area around his lymph node, i think he thinks he has some kind of cancer and his lymph nodes are reacting to it. He was convinced he had developed lung cancer until the chest xray showed nothing. (His mother was diagnosed with lung cancer last november). I have been researching and researching and I am coming up with anything from Chronic Fatigue to him having a cold or flu. Has anyone else experienced this symptom and given a straight answer or diagnosis?