I'm Going On My Third Year Undiagnosed In The Past

I'm going on my third year undiagnosed in the past year and half I have had four surgeries. I have had nine lymph nodes and one gland removed from left side of my neck two benign tumors removed from around my voice box and back of tongue. All came back benign. I now have another swollen lymph node. Also fatigue and nausea is really bad. Seen an Onocolgist and a Rheumatologist but no one seems to know what's wrong.