Sounds so jacked up and yuck but i have a neurofibroma in my toe.. I cant see the tumor as it is growing inside the nerve. my foot dr found it via ultra sound. it feels like the tumor is underneth the toe nail and it hurts so bad when i wear shoes or when i brush it agnst something. im here at the foot dr now and we are planning surgery. yayyyy!! so if anyone else has a very sore nailbed there just may be a tumor growing inside that you cannot see.