Sphenoid Sinusitis: Headaches, Fungal Causes, and Treatments Have you ever had a headache so bad 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 actually tinker your life. https://trentonlhbvp.bligblogging.com/32068058/treating-my-sphenoid-sinusitis-effectively