lymph nodes for over a year

[Nathaniel1]

Since April of 2016, my friend pointed out a very small bump at the bottom of my neck, a bit below my thyroid. it was maybe 5mm, the size of a BB. I had known about this a few months before it was pointed out, I just didn't think much of it at all. Then a few months later in October, it was still there (hadn't grown in size), but I noticed another bump on my chin, maybe a cm in size or so. I don't know if it has been there for a while or if it just appeared in October. I also have very small lymph nodes (less than 3 mms maybe) under my chin, like one or two. They seem kinda loose, as in I can push them around, they're painless, and I feel completely healthy. I have not visited a doctor yet but I should be soon hopefully, should I be at all concerned about these? If it helps, I'm male and 14.