Would lymphoma cause like just one or 2 palpable nodes or like many through out neck and head? or if all over would it be more like lupus?

Likely Lymphoma: It is less likely that lupus gives pts enlarged lymph nodes. One or two lymph nodes or multiple is common in lymphomas (hodgkin may give less number and larger nodes?).

Dx = biopsy or...: You cannot determine to cause of lymph nodes without a clinical context (eg, they resolve on own or are enlarged from infection) or a lymph node biopsy. The differential diagnosis spans a-to-z -- http://www.Mayoclinicproceedings.Org/article/s0025-6196(11)64620-x/fulltext.