Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had aching head so bad it felt like your skull was splitting? I when felt like that, curled up in bed, unable to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can actually tinker your life. https://sleepapnea84940.isblog.net/detailed-notes-on-sphenoid-sinusitis-48752998