Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had head pain so bad it seemed like your skull was splitting? I when felt like that, snuggled in bed, not able to face the sunlight. I was handling sphenoid sinusitis, a condition that can truly mess with your life. https://sleepapnearisks17272.blogminds.com/facts-about-sphenoid-sinusitis-revealed-29016228