If you’ve ever felt a sudden, searing pain behind one eye — so intense it woke you from a deep sleep or made you pace the room unable to sit still — you may be experiencing cluster headaches. Sometimes called “suicide headaches” because of their severity, cluster headaches are one of the most painful conditions known to medicine.

If you’re reading this, chances are you — or someone you love — are living with headaches that never seem to fully go away. You’re exhausted. You’ve canceled plans. You’ve pushed through pain that most people can’t imagine. You deserve answers, and you deserve hope.