Hi, my boyfriend was involved in a four wheeler accident about 3 or 4 yeas ago, and just now decided to tell me . I felt the back of his head (around the parietal lobe) and that part of the skull was caved in and very bumpy. If a certain amount of pressure is applied, or if the hair is being pulled in that area, he curls up into a ball and holds his head, crying. He says its the worst pain he ever goes through. Also, he does get random nosebleeds quit often. Please answer!!