i have just noticed two smallish pea sized lumps right in frount and at the bottom of my left ear. there is also one just under my jaw line. im imagining they are lymph nodes but i am not sick and i dont feel like i have any infection. they came up suddenly last night. i guess i might be feeling a little run down but not sick. i am 39 female in generally grwat health. i do have a history of complex migranes but havent had one of those in almost 2 years. should i be worried that they are cancereous.