Is it normal for lymph nodes to swell on both sides of the neck? I don’t feel sick and they don’t hurt. It’s just a fullness feeling.

Not Normal. Bilateral swelling of the cervical lymph nodes is not a normal finding. An evaluation with your primary care physician would be suggested to make sure that what you are feeling are lymph nodes and not another anatomical structure.
Bilateral lymph node. swelling is not normal and should be evaluated by a health care professional even if you do not feel sick. Make an appointment today.