Hello, I have a pea sized movable lump about two inches below my collar bone/near center of chest. It does not hurt but is now tender. 31, male.?

Get checked. This type of lump should be assessed by your doctor to determine if it is a cyst, fat mass or a lymph node. Good luck.
See doctor. it may be a benign cyst, but if it hurts, removing it is the answer and if it is something else they can stdy it in pathology.