see your doctor.
These lumph nodes (occipital) one to three in #s are located on the back of the head close to the margin of the trapezius and resting on the insertion fo the Semispinaliscapitis.
These may have some thing to do with your lympth nodes getting hard and causing the fevers???
Mastoid, Parotid, (precuricular) Buccinator,Supraclavicular ( vrchow”s)
Paratracheal, Jugular If not at least something to read about with the head