So, 3 weeks ago my daughter head butted me on accident in my neck. The same night I noticed a small lump, between pea and marble sized, above what would be my Adams apple. Its not directly on the midline, its slightly to the right. It feels like it's attached to whatever is hard there. Bone, cartilage, Idk. It moves with the bone or whatever when I swallow. I've had my thyroid and white blood cell count checked. Its all normal. Does anyone know what this could be? I'm so terrified it's gonna be cancer or something.