My lymph node under my chin is really swollen. can stress do this. i am 5 foot 7 145 age 40 female. i think iam healthy no colds etc

Not stress induced: It may be something else besides a lymph node, like a cyst or other epidermal lesion. Assuming it is a lymph node, it is reacting to something. Lymph nodes make antibodies to fight foreign invaders, typically bacteria. Lymph nodes under the chin drain the floor of the mouth and teeth. Most commonly, a dental problem of the lower teeth could cause this problem. Look under your tongue