I would get to a specialist since your doctor doesn't seem to be listening to you. An ENT would be great also an Endicrinologist with specialized in deep rooting problems with your system. Good luck I hope you find relief soon.
Hi
Welcome to the MedHelp forum!
Neck lymph nodes can be the result of tonsillitis, pharyngitis (infection of upper throat), infection in mouth, caries in tooth, internal ear infection, outer ear infection, eczema, dermatitis, dandruff, breast cancer, fungal infection, other cancers like lymphoma etc. If you had flu like symptoms initially then it could be due to infectious mononucleosis too. Thyroid cancer is another possibility since you have a lumpy thyroid.
Please discuss this with your doctor.
The enumerated the possibilities can be investigated or ruled out one by one by your physician and dentist by running some tests.
It is difficult to comment beyond this at this stage. Please let me know if there is any thing else and do keep me posted. Take care!