not sure what to make of it.

I am 19 years old, and a male. Okay, so i have a few swollen lymph nodes on the left side of my body. They are located on the back of my neck, and my groin. They have been swollen between 1-2 months. Went to ER twice. The first time they did a cat scan of my head, chest x-rays, and an assortment of blood tests, spleen, liver, not really sure what all was done. Took 6 tubes of blood. All came back okay, said my white-cell count was a little high, prescribed me to doxycycline (some kind of antibiotics). Cat-scan was fine nothing abnormal aside from a little fluid/gas buildup in my pharynx. Went back around 7 days later complaining of same symptoms. The only symptom I even had were excessive fatigue and the enlarged lymph nodes. The neck lymph nodes were the only swollen ones at the time (or i hadn't at least noticed the groin ones). They then proceeded with the same methods, cat-scan, chest x-ray, EKG on heart this time, same amount of blood tests. This time my white-cell count was normal. Chest x-ray showed I had some mild bronchitis, but I hadn't been coughing or anything really. Returned next morning for an echocardiograhm in which the results were sent to a larger hospital. Results came back okay after a couple days. Now it's been about 4 weeks. The lymph nodes on neck are still swollen, haven't gotten any larger though. Now I've notice my lymph nodes in groin are swollen as well. Still have some fatigue but not as bad as before. What can any of you folk make of this? How long should they remain swollen? I wasn't told I had mono or anything but hell with doctors nowdays I don't even know if they really checked. Any help or insite is appreciated.
Thanks

[Dnmh]

Hello and welcome to the communtiy!
It seems like the bronchitis was responsible for the enlarged lymph nodes. A slightly elevated white count supports this. If it were leukemia, it would show up in your labs, such as a very elevated WBC, if lymphoma, the CT scans would have picked it up. The fact that they haven't gotten any larger in 4 weeks is also a good sign. Sometimes, after an infection is gone, the lymph nodes may stay the same size or reduce only slightly.
I have had bronchitis on and off most of my life - and that alone can cause fatigue. Bronchitis causes an inflamation (inflammation) of the airways, making it difficult for oxygen to pass through. The decrease in oxygen and your bodies struggle to maintain a healthy level of it are the main causes of fatigue.

If your still concerned, keep an eye on your lymph nodes. If they enlarge more or your symptoms get worse, perhaps you should schedule an appointment with an internist. Emergency Departments are fantastic for most things, but they don't often have the time to give individualized attention to each and every patient that walks, or gets wheeled through the doors. Your best option is a one on one meeting with your doctor. If they don't have answers, more often then not they will refer you to a specialist.