Welcome to HealthcareMagic.From what you have mentioned, you seem to be having some infection of the uuper respiratory tract
, as you guessed right, like adenitis( very common). Might even be cat scratch disease
, tuberculosis related swelling of lymph nodes, although they are generally not painfull in Tuberculosis. But , please do not panic. It could be just a viral cause also, which might take a few days time to resolve. However, i suggest you to undergo a complete blood count
, a chest X-ray, to begin with. Visit a physician and a ENT specialist
as well. They will guide you in proper way.Hope i could answer your query.Take care.