Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had head pain so painful it felt like your head was splitting? I once felt like that, curled up in bed, not able to face the light. I was handling sphenoid sinusitis, a condition that can truly tinker your life. https://sleepapneasymptoms05049.prublogger.com/30852228/not-known-facts-about-sphenoid-sinusitis