Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so bad it felt like your head was splitting? I once seemed like that, snuggled in bed, not able to face the sunlight. I was dealing with sphenoid sinusitis, a condition that can actually tinker your life. https://shanecyxxg.blogrelation.com/37619767/facts-about-sphenoid-sinusitis-revealed