Open Question: HELP!!! Swollen lymph nodes around collar bone ane neck!?

Hi im 16 and ive had a bunch of large swollen lymph nodes around my collar bone and lower neck for the past 3 to 4 months. im not sick, in fact i almost never get sickm even a common cold. i have a really strong immune system which makes this even more odd. the nodes can move around when i touch them but theres like a cluster of them and they are super easy to feel even just by touching my