Neck pain from anxiety?!?

 I can absolutely relate to this. Anxiety and stress seem to focus themselves in the head, shoulders and neck area.   I had neck pain so bad I couldn't turn my head.

 The muscles on each side of my neck were so tight and it went down into my shoulders and cervical area on my neck. These are the areas that people tense up with stress   And overtime it's going to get tight and painful.   I had to go to physical therapy because it was so bad.

 it's not the lymph nodes that are swollen it's the neck muscles. You must believe the results of your test because if you had blood work done that would definitely show if something else was going on. If you did, your white blood cell count would be skyhigh but it was normal.

You do not have lymphoma. 

Sometimes when we have poor posture whether it's sitting looking at cell phones or iPads etc. that can definitely cause pressure and tightness on the neck. We don't even realize how we are sitting or how our necks are turned etc.

 everything we look at should be Eye level.

Your neck should not be downward or upward position for a long time. 

 there are some simple stretches people can do for tightness in the neck. They really help a lot and you can even ask your doctors office  for a recommendation. 

 if you do suffer from anxiety, that alone can cause all kinds of symptoms so I would recommend getting your anxiety under control either speaking with a counselor or doing meditations for anxiety on YouTube, doing things in life that relax you ,  staying active and social and doing things for other people always makes you feel better. You're going to be just fine. Try to stop thinking worst-case scenario  because there is a 99.999% chance your neck tension is due to anxiety. 🌸🌸🌸??

It could be from the anxiety - as you had things checked out try to calm down a bit & believe in the results. You say you don't have swelling, so it could be the muscles - esp. when you say it went on 2 months already...there is a lot of tension & strain that could have build up in that time.

I would start to tense up my jaw, due to stressing out & anxiety, as soon as I got up the morning (still do but working on it) - with time it made my throat feel tight, my neck stiff & hurting & eventually reached my back/shoulder area...it was pretty painful & made me more anxious, which of course did not help. ^^  I tried relaxing, guided meditiations you can find on youtube (not really my cup of tea but it helped some tbh) & some jaw & neck exercises & light stretches & self-massages (jaw & neck) - it helped a lot.

Mabe try some light stretches or other neck exercises and see if it helps? The pain might be from all the tension in the muscles - it can't hurt to try some simple fixes before freaking out (easier said than done, I know ^^ ) & trying to get the anxiety under control is always a good step too, imo.

If nothing helps talk to your doctor - I am sure they can adivse something.

Good luck.