Lymphoid hyperplasia and can feel a lump

Hi

I’ve been experiencing the feeling of a lump in my throat at the back of my tongue and I can feel it with my finger. This was missed on MRI and ultrasound. I was told I had lymphoid hyperplasia and they left me to it. 
I have a history of lymphoma and I feel this is a relapse. 
I have a strange feeling in my tongue and back of throat I have swollen lymph nodes on that side and also pain around my ear and neck. 

I have an ultrasound on Tuesday and FNA of the lymph node. ideally I want the lump in my throat to be seen and felt but I feel I’m going to be fobbed off again. The lymphoid hyperplasia should be biopsied but they are ignoring me. 
I’m absolutely petrified this is cancer again and I’m not being heard how can I get to the bottom of this and make them listen to me