Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so painful it seemed like your head was splitting? I once felt 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://sleepapnealifeexpectancy73838.verybigblog.com/30938116/facts-about-sphenoid-sinusitis-revealed