Mono or lymphoma?please help

Hey!

I've had swollen lymph nodes in my neck armpit and groin for 5 months now,the first month I had severe fatigue and night sweats along with testicular swelling and weight loss,that went away and I've felt fine since

I've had 2 ultrasounds and 6 blood tests all came back clear

This week I've noticed larger lymph nodes in my inner thigh and at the top of my hip,the one in my armpit has shrunk considerably but the others have stayed the same and with the new ones appearing on my hip I'm very concerned and cannot sleep.

The doctors thought it was mono but said it was too late to test for it as I had nothing show up on my ebv titers. 

I feel like the docs aren't taking me seriously at all and with the new nodes appearing despite me feeling fine isn't that a bad sign?

The nodes are also movable which I've read is a sign of lymphoma

Any help is greatly appreciated.