Fibrous dysplasia of the skull, including the clivus and sphenoid bones, can this cause tinnitus and headache. Should it be monitored with regular CT scans or an MRI? No one seems too concerned that my husband has FD in all his skull bones and that now he is having increased headache, neck pain, and relentless tinnitus. He has chronic insomnia due to the tinnitus and now his employer is adding a third shift to his schedule. (days, evenings and now graveyard shift). I am thinking he will end up in the graveyard at this rate. Any advice would be appreciated.