I have pain & numbness & tingling in head, neck, arm and hand all on right side. Started 3 wks ago and getting worse.

Noticed today I have a lumpy swelling on right side of neck, just behind jawline below my ear, I guess there are lymph nodes there?

Trying to find out if any connection, wondered if you guys might be aware of anything here? Could lypmh problem cause neuro symptoms?

TIA

PS typing slow & difficult, sorry grammar etc is sketchy, am not usually this curt! ty x