Unbearable Agony: A Personal Battle With the Puzzling Pain of Cluster Headaches

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 sharp pain erupted behind my right eye. It was followed by rapid shocks, like lightning bolts. As each class came and went, the discomfort subsided and then came back with increased intensity. Four times that day I handed over a teaching assistant with activities and hurried to the school bathroom to soak my face with cold water. I tried paracetamol, but the agony remained unbearable.

The headaches returned frequently that autumn, and once more in the spring, soon establishing an annual cycle. The autumn months were the most severe, then the late winter. I could anticipate the pattern: a warning sensation in the shower, early twinges on the commute, full-blown pain in class by 9.30am. In late 2019, a doctor eventually sent me to a neurologist and I was diagnosed with cluster headaches.

This condition often begin with intense discomfort around a single eye that lasts up to three hours.

Approximately 1 in 1000 individuals suffer by the condition, and males are more often diagnosed. Cluster headaches usually start with sudden, severe pain focused on one eye that peaks within minutes and lasts for as long as three hours. Episodes occur in cycles, every day or multiple times a day, and are associated with tearing eyes, drooping eyelids or face sweating. There exists an episodic type, which occurs in periodic cycles; some patients have chronic attacks, characterized by the lack of long symptom-free periods.

What unites sufferers is the severity. One study rated the pain at 9.7 10, higher than bone fractures or pancreatitis. Another found a significant percentage of cluster headache patients reported thoughts of self-harm amid bouts; the figure dropped to 4% when they were pain-free.

Val Hobbs, 74, a long-term patient from Pembrokeshire, finds this understandable. Her attacks started when she was a toddler. “I would hurl myself on the ground and hit my head. That was put down to being a difficult child,” she says. Her symptoms deteriorated through her youth. Alcohol in her teens, like several causes, made things more intense. After drinking sherry at her graduation party, she recalls barely being able to see on the bus home.

Her relatives often mistook her attacks as intoxicated episodes. Understanding eventually came from her father and then from her husband, her spouse. “I was very fortunate to find such an understanding person,” she says. Hobbs took clerical work after relocating, but often concealed her illness. She was dismissed from one job, partly due to absences during episodes. Her breakthrough diagnosis came in 2002 at a national neurology center.

Still, the failure to organize life around unpredictable pain took its toll. She particularly hated being unable to plan outings, being seen as flaky as a co-worker, and even having to be cared for by her children during the incapacitation caused by the worst episodes. “It robs you of the small freedoms we don't value until they're gone,” she says. She remembers winning tickets for a significant concert, only to have an episode inside a facility.

Headaches have been documented across the ages. “The first description of headache comes by way of the Mesopotamians in antiquity,” write authors in a publication on the topic. They linked the ailment to an malevolent entity who attacked his sufferers' heads.

Ancient healing records propose unusual remedies for what some experts would describe as a headache disorder. In the medieval times, migraine was identified as a separate condition, with treatments ranging from herbal concoctions to other, more folk cures.

It was a European doctor who provided the first detailed account of a cluster headache. In his writings, he describes a patient “afflicted with a very intense headache occurring and vanishing daily at fixed hours”.

The disorder were only formally recognised by international headache committees in the late 1980s. From the mid-20th century to the 1990s, they were believed to be caused by a problem with a key artery which supplies blood to the head. Prominent experts in treating the disorder explain this.

In the late 1990s, researchers published the results of a research project for which they had triggered cluster headaches in patients and observed the attacks in a brain scanner. The results, published in a major journal, showed increased activity of the hypothalamus, which is in charge for human circadian rhythm, when patients were in discomfort, and a reduction when they felt better.

Despite such advances, identification remains delayed. Jamie Charteris's attacks began in 1986 and felt like “a balloon being inflated behind my left eye”. GPs thought he had a sinus issue; he underwent four surgeries before finally being correctly identified in recently, after a physician researched his complaints.

Neurologists say wait times in diagnosis and treatment happen because patients are seldom seen during an episode. “You're exhausted and depressed, but not in severe pain,” one says. He proceeds by eliminating other primary headache disorders, such as migraine, before confirming cluster headaches. A detailed history is essential: on which side do signs appear? For how long? What time of year? Are there triggers, such as alcohol? Specific characteristics such as tearing, sagging eyelids and stuffy nose help confirm the diagnosis. Once identified, patients may be referred to dedicated clinics. But a lot of first arrive to emergency rooms or are given unsuitable treatments.

A charity trustee, 78, has suffered from the condition for the majority of her life, although she hasn't had an attack since 2016. When she was in her twenties, she had her teeth pulled because dental professionals misunderstood her symptoms. She believes dentists still need greater education. When another patient sought help from a charity, it was Chapman who responded. I remember calling a support line during an bout in 2021; a calm volunteer guided me through oxygen treatment and drugs until the episode eased.

Official guidelines on management advise that sufferers are offered high-dose oxygen and/or a specific medication administered by injection. No tablets or strong analgesics should be used. Prophylactic options include verapamil, which reportedly soothes the attacks of some people.

But consultant specialists argue the official guidelines need revising to reflect a more defined treatment process and help GPs avoid incorrect prescriptions. For periodic patients, timing is critical: “The length of the bout determines the approach.” Brief bouts with occasional attacks are handled with acute therapy only. More prolonged or more severe periods require preventives such as verapamil, sometimes combined with corticosteroids. Many patients also receive a nerve block injection during a bout – an procedure into the side of the skull where the pain is that decreases nerve signals.

The national guidelines need revising to reflect a