Hello,I have cyclic neutropenia for about 4 years no. It goes sometimes as low as 0.5. If I catch something I have to ho to ER they put me to monitor for a few days and then it starts to go up they let me go. Few doctors suggested to do a bone marrow biopsy. But there is no other concerns except from Neutrophild why they should do it. So they never done it. All around my body ,neck ,groin,armpits I have small lymph nodes mostly all of the time around 3 cm. When I am ill for example virus or something it gets very enlarged and then goes down. My question is for the past few weeks I feel so weak such a huge fatigue. I just want to sleep all the time. I checked my abdomen because it felt funny,and I did it for few days in a row,basically on my left side by the belly button,I can feel a lump around 5cm,it kind of moves,but I can always feel it. What can it be?? Can it be a lymph node?