Neck swelling/knots in morning on side I sleep on.

Sandraw

Hi all and Happy Mother's Day to all the Mom's. 

I'm about a year out of Chemo/Rad for Stage 3 NPC. Had shingles on right side upper chest and front/back shoulder in January, since Ive had 1 not smallish feeling hard lymph node on that side. But...also now when I wake up my neck is swollen in the mornings depending on which side I'm sleeping on. It's really obvious when looking in mirror,  a very large hard lump/hump. It does go down by mid afternoon. I've told my ENT who said all looked fine at last scope in March. I'm seeing my Med Oncologist Fri morning who said likely not much he can do but he will look at it. You guys think this could just be slow lymph nodes?  I've had lymph massage training from P.T. and do that at least daily, should I try to insist on a scan? Just lumpy and a bit skeered/confused. Thank You Super People!