hello, I'm 18 years old female. I'm experiencing a painful lymph node under my right jaw sometimes when i eat and this continues. I can feel a bump in it, and this sometimes get bigger. I don't know if its in the food or the way i'am eating but this experience has been new to me this past few weeks. it's not persistent,it ust occur every now and then. i wonder why. but note that i dont have flu, colds, or any other illnesses