Hard lump that appeared suddenly on neck? Yesterday I suddenly began to feel pain in the upper area of my neck, just below my jawline. When I pressed my fingers against the area, I felt a hard mass/lump under the skin. The pain has disappeared today, but the lump is still there. It s an oval shape that can t be moved. I ve made a doctor s appointment for Monday, but I m fearing the worst. I m only 19, please help.