For a long time I've had a lump on my neck probably since I was around 14 or 15 and i'm not sure what to do. It's not painful, and if I flex my back I can't even tell it's there but I obviously don't want to walk around the beach or anything else the rest of my life flexing my back. When I put my shirts on its lifted there, unlike most males backs that have the nice droop from the neck to the shoulderblades. I don't have the best posture but to be honest I don't think it's my posture. If I move my head back it doesn't change at all it seems like fat to me and I don't know what to do. Please help!