Lymph node swelling - convinced its lymphoma

I'm sort of new here, 

Basically around 4 months ago I noticed that I had enlarged lymph nodes. In the four months since I noticed them, they have not grown, changed shape nor have I been poorly, itchy or sweaty since noticing them.

 I have one lump on either side of the jaw, this terrified me so I went to the doctors and they said it was nothing to be worried about. 

That was four months ago, the lumps are still there. They are painless and movable, I had a blood test done three weeks ago and everything came back fine, but I know that lymphoma is not detectable via a blood test. My anxiety has convinced me that I am dying, I finally called my doctors and they arranged for me to go to a head and throat specialist and I should get my appointment come through in the coming days 

I fear I have left the lumps for too long and I won't live much longer. I'm a 21 y/o man and have suffered huge anxiety since I was a teenager, and googling has convinced me that this is it, I'm even worrying about funeral payments, I never sleep either 

 

I doubt anyone will see this, but anyway that's whats happening