anxiety due to swollen lymph node

I am 23 y/o female non drinker non smoker. have a swollen lymph node since almost 6 months just below my ear where jaw ends. its not visible normally but I can feel it when I palpate the area. Its hard to touch, painless and I think dosen't move. It is has not increased in size too. I am very anxious about it .I try to overcome it but the anxiety keeps on comming. I have consulted doctor and he says its probably nothing and not to worry but he has not advised any tests for it.

please help if someone has a similar experience.

https://preview.redd.it/87qcyp0iyz7e1.jpg?width=1139&format=pjpg&auto=webp&s=3f138de389ee62b99b6d2426003a171a643e2d1a