It maybe be nothing, but it does causes to ee troubling to me. I do have thyroid problems, been taking pills all my life and just had the blood panel tests taken less than 6 months ago and everything came back a OK. I read at another site about it could be infection My ears are fine, there's no ear pain involved. We do however have a pool in our apartment complex. I am throwing out any reasons for how I got this infection. I dont have any clue how often they clean that pool, I am very leery about those things. The node is pronounced and hard to the touch. Reading some questions and answers on a another site, some said they got mixed answers, one said they waited months to get checked out, and another doctor told her not to worry until the node gets really big. That's really comforting...hmm.