I have a small lymph node in lower area of left side of my neck. I have had a seriously swollen shoulder from rotator cuff problems. Can this be a cause of the node? I had a Pet 6mths ago and it has slightly enlarged. I suffer from awful sinus drainage and clering throat because of it. I am so afraid it is cancer. PET this Friday. I hhave been in remission for 6yrs Dr. says it is not likely to be that. I can t stop mashing to find this thing. Help.