I have a hard lump right above my collar bone on the right side of my body. i can feel a heavy pulse when i touch it and it feels like a small rock. ?

R/O DVT ER EVAL!: Although it is unusual you can have DVT(deep venous thrombosis ) = blood clot in this area. Or an aneurysm(dilated blood vessel) in either case I would recommend prompt ER evaluation for Ultrasound or MRA of the area to define the problem. Since the mass feels pusatile , less likely a lymph node or lipoma. Seek ER evaluation promptly! You will also need a full clotting work up.