I’ve had recurring swollen lymph nodes for almost two years now. Different ones swell up at different times. A different one swells up every other week although there is one that is permanently swollen. They are usually located in my neck and head area. Sometimes they swell up so much that they hurt. I thought maybe it was an infection or allergic reaction but it just keeps happening. Sometimes they’re swollen with no other symptoms. The most common other symptom is extreme fatigue. Other sympto