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It began on a overcast weekday morning in the autumn of 2016. I was working as a educator, attempting to manage a new group of students, when a sudden pain sprang behind my right eye. Then came quick shocks, reminiscent of lightning bolts. As each class came and went, the discomfort eased and then came back with greater intensity. Four times that day I left a teaching assistant with worksheets and hurried to the staff bathroom to douse my face with cold water. I tried aspirin, but the pain remained unbearable.

The headaches returned repeatedly that fall, and again in spring, soon establishing an yearly pattern. The autumn months were the most severe, then the late winter. I could predict the routine: aura in the morning, early twinges on the train, full-on agony in class by 9.30am. In late 2019, a doctor finally referred me to a neurologist and I was diagnosed with cluster headache disorder.

This condition often start with intense discomfort behind a single eye that persists for three hours.

Approximately 1 in 1000 individuals suffer by the disorder, and men are more often diagnosed. Attacks typically begin with abrupt, severe agony focused on one eye that reaches its peak within a short time and lasts for as long as three hours. Attacks come in clusters, every day or several times a day, and are accompanied by red or watery eyes, sagging eyelids or facial perspiration. There exists an episodic type, which arrives in periodic cycles; others have continuous attacks, defined by the absence of long pain-free periods.

What connects sufferers is the intensity. One study scored the sensation at 9.7 10, more severe than broken bones or other conditions. A separate found a significant percentage of cluster headache patients reported thoughts of self-harm during attacks; the figure fell to four percent when they were not in pain.

Val Hobbs, 74, a long-term patient from Wales, isn't surprised. Her attacks started when she was two. “I would throw myself on the ground and hit my head. That was attributed to being a difficult child,” she says. Her condition deteriorated through childhood. Alcohol in her adolescence, similar to several triggers, made things more intense. After drinking sherry at her school leaving party, she recalls barely being able to see on the bus home.

Her relatives often interpreted her attacks as intoxicated episodes. Understanding eventually came from her father and then from her partner, her spouse. “I was very lucky to find such an exceptional person,” she says. Hobbs took office work after relocating, but often hid her condition. She was dismissed from one job, partly due to time off during episodes. Her breakthrough identification came in the early 2000s at a specialist neurology center.

Nevertheless, the inability to organize life around unpredictable attacks took its effect. She especially disliked being unable to plan outings, being seen as unreliable as a colleague, and even having to be cared for by her children during the paralysis caused by the worst episodes. “It robs you of the small liberties we don't value until they're gone,” she says. She recalls obtaining tickets for a significant concert, only to have an episode inside a facility.

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Headaches have been documented throughout the ages. “The earliest account of headache originates from the ancient civilizations in 4000BC,” write authors in a publication on the subject. They attributed the ailment to an malevolent entity who attacked his sufferers' heads.

Ancient medical records propose unusual remedies for what modern experts would classify as a headache disorder. In the medieval times, severe headache was recognised as a distinct condition, with treatments including bloodletting to other, more folk cures.

It was a Dutch physician who provided the first comprehensive account of a cluster-type attack. In his medical observations, he speaks of a patient “suffering with a very severe headache occurring and disappearing each day at fixed hours”.

The disorder were only formally recognised by international medical societies in 1988. From the mid-20th century to the 1990s, they were believed to be caused by a issue with a major artery that delivers blood to the brain. Prominent specialists in diagnosing the disorder explain this.

In the late 1990s, researchers released the results of a study for which they had triggered attacks in patients and observed the attacks in a imaging machine. The data, published in a prominent medical publication, showed activation of the a brain region, which is in charge for human sleep-wake cycles, when patients were in discomfort, and a reduction when they felt better.

Despite such advances, diagnosis remains slow. Jamie Charteris's symptoms began in the 1980s and felt like “a modelling balloon being blown up behind my left eye”. GPs thought he had sinus problems; he had four operations before finally being correctly identified in recently, after a physician researched his complaints.

Neurologists say wait times in diagnosis and managing occur because patients are seldom seen mid-attack. “You're exhausted and depressed, but not in severe pain,” a doctor says. He works by eliminating other primary head pain disorders, such as migraine, before diagnosing cluster headaches. A thorough patient history is crucial: on which side do signs occur? For how long? What season? Are there triggers, such as certain foods? Specific characteristics such as redness, sagging eyelids and nasal congestion help verify the diagnosis. Once identified, patients may be referred to dedicated centers. But a lot of first go to emergency rooms or are given inadequate therapies.

Dorothy Chapman, 78, has suffered from cluster headaches for the majority of her life, although she has been free from an episode since 2016. When she was in her twenties, she had her molars extracted because dentists misunderstood her symptoms. She thinks the dental profession still need much more education. When a sufferer sought help from a charity, it was Chapman who responded. The author recalls calling a support line during an bout in 2021; a calm volunteer talked me through oxygen therapy and drugs until the episode eased.

Official guidance on management advise that patients are offered high-flow oxygen and/or a anti-migraine drug delivered by nasal spray. No oral painkillers or opioids should be used. Preventive options include a blood pressure medication, which reportedly soothes the bouts of well-known individuals.

But leading specialists argue the official guidelines need revising to reflect a clearer treatment pathway and help GPs avoid misprescribing. For periodic patients, timing is everything: “The duration of the cycle dictates the treatment.” Brief cycles with occasional episodes are handled with acute treatment only. Longer or more intense periods require preventives such as verapamil, sometimes paired with corticosteroids. A significant number of patients also receive a nerve block injection during a bout – an injection into the area of the skull where the discomfort is that reduces nerve signals.

The national guidelines need updating to reflect a