Swelling palate

My palate has been swelling up for a year and a half into hard smooth painful growing lumps and I feel so unwell no appetite sweating 

The roof of my mouth is hurting and sometimes just a dull ache 

I had bowel cancer and was treated in 2023 I felt well for around 7 months then started to get ill again

Mri scan on 15th may reported as normal but palate still swelling up 

Doctor said no more tests but I'm not happy