I have one swollen lymph node that is swollen most of the time, but doesn't hurt (I thought it was a protruding vein till tonight). I also have chronic yeast infections. I am a breastfeeding mother, age 33, 5'7" and weigh about 130 lbs.. I also have a cold right now. Should I be concerned? Should I see a dr. ASAP? Any help would be appreciated. THanks.