Supraclavicular notch swollen lymph node

I have discovered a possible swollen lymph node, although my chiropractor thinks it is a mass of some sort. It is on the right side in the 'notch' just above my collarbone, very soft and does not hurt at ALL. I am taking a break from Iodine for now because, quite frankly, I am freaked out. I will have x-rays next week.

Please....has anyone had this, heard of this as a side of effect of Iodine supplementation?

Thanks in advance. And, btw, I feel very good these days! Had a couple of bromide incidences, the last at the beginning of May or so. Sort of like a cold but not too bad.