I am a 15 year old girl and I have a lump under my skin on the middle right side of my neck, you can only see it when I tilt my head to the left and only hurts when I touch it. I also have two hard pea sized lumps under my skin also on the right side underneath the other lump. The first lump is squishy and moves around, the two pea sized lumps underneath the first lump are hard and don't move, and hurt to touch them also what could this be?