I am a 42 yr old that had a lump pop up on my collar bone area about 2 yrs ago.  I was sent for a x-ray and it showed a BB.  Much to my surprise I had no idea and my family (parents) claim the same.  In the past 2 yrs I have had multiple test for chronic fatigue.  My fatigue has always been blamed on Thalassemia and Epstein Bar Virus.  I just feel something is being overlooked and tired of feeling tired!!  Could this BB be pressing on anything important??  Its a lump that has gotten bigger in the past 3 months for some reason.  Can it cause poison in your body?  I have no idea how long its been there honestly!  I am assuming childhood.
Welcome to Chat Doctor. 1. The history suggest me the possible cause could be enlarged lymph node.2. The chronic systemic problems you have can cause this enlargement of the lymph node. The next possible cause will be lipoma (fat containing lesion).3. For confirmation an ultrasound examination will help - which will assess the nature of the lump its source and extensions can be known.4. If it's solid mass an FNAC - fine needle aspiration cytology can help to identify the nature of cells responsible for this cause.5. Sugget to get an appointment and get examined and request for scan. Good luck. Hope I have answered your query.Anything to ask do not hesitate. Thank you.