If i was you i would be asking for a biopsy of this mass they have found in
the right side of your neck
Especially to rule out the cause, we dont get masses for no true cause.
Be adamant about this and dont be fobbed off for no-one.
Explain about the family link of Lymphoma, and ask for your mass to be BIOPSIED.
Good luck, and i hope you get some answers soon, for this problem.
Let them know because of the family history, and you not knowing what it is .
That this is causing you great stress.