Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Ever had a headache so bad it felt like your skull was splitting? I as soon as 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://claytonlnpqi.blogminds.com/facts-about-sphenoid-sinusitis-revealed-29017501