I’m currently trying to get an appointment about this, but I am also going to ask here :)

It started as one small swollen lymph node - after a few weeks I went to the doctor about it, he said it was fine and not to worry - this was years ago and that lymph node has never gone, however it has gotten worse - almost all of my lymph nodes (in my neck area) are swollen to quite a large size, and I have been to the doctor several times over the years about this, and I have always been told not to worry, however they can sometimes hurt and I am especially worried as one has now swollen up on the side of my face. I feel like none of the doctors have taken me seriously - the Most one ever did was send my for blood tests, which came back normal. I want to be taken seriously as I have looked all over the internet (unfortunately the NHS site has little Information) which I know is a bad thing to to however I really can’t find much about multiple lymph nodes that have been swollen for years. (I also want to add that whilst they are swollen, none are really visible, however you can feel them very easily.)  I would really appreciate some advice on this :) 

Thank you