I am not sure where the glands
are swollen. Neck
lymph nodes can be the result of
tonsillitis, pharyngitis (infection of
upper throat), infection in mouth, caries in tooth, internal ear infection, outer ear infection, eczema, dermatitis, dandruff, breast cancer, fungal infection, other cancers like lymphoma etc. If you had flu like symptoms initially then it could be due to infectious mononucleosis too.