Full-Blown Agony: A Personal Fight Against the Enigmatic Pain of Cluster Headache Syndrome

It was a gloomy Monday morning in September 2016. I worked as a teacher, trying to settle a new class, when a sharp sensation bloomed behind my right eye. It was followed by quick stabs, like electric shocks. As the school day came and went, the discomfort eased and then returned with greater intensity. Four times that day I left a teaching assistant with activities and ran to the school bathroom to douse my face with cold water. I tried paracetamol, but the agony remained unbearable.

The headaches appeared frequently that fall, and once more in the spring, soon forming an annual pattern. The autumn months were the worst, then the late winter. I could anticipate the routine: aura in the shower, early twinges on the train, full-on pain in class by 9.30am. In 2019, a doctor finally referred me to a neurologist and I was diagnosed with cluster headache disorder.

This condition typically start with intense discomfort around one eye that persists up to several hours.

Approximately 1 in 1000 people are affected by the disorder, and men are more often affected. Cluster headaches typically begin with sudden, excruciating agony around one eye that reaches its peak within minutes and lasts for as long as three hours. Episodes come in clusters, every day or multiple times a day, and are associated with tearing eyes, drooping eyelids or facial perspiration. I have an episodic type, which arrives in seasonal bouts; others have continuous attacks, defined by the lack of long symptom-free periods.

What connects patients is the intensity. One study rated the sensation at 9.7 10, more severe than bone fractures or other conditions. Another found a significant percentage of cluster patients reported suicidal thoughts during bouts; the figure dropped to four percent when they were not in pain.

Val Hobbs, in her seventies, a long-term patient from Pembrokeshire, finds this understandable. Her episodes started when she was two. “I would hurl myself on the floor and hit my head. That was put down to being spoiled,” she says. Her symptoms deteriorated through her youth. Alcohol in her adolescence, similar to several triggers, made things worse. After drinking alcohol at her school leaving party, she recalls hardly being able to see on the bus home.

Her relatives often interpreted her episodes as drunken episodes. Understanding eventually came from her parent and then from her partner, her spouse. “I was very fortunate to find such an understanding person,” she says. Hobbs found clerical work after relocating, but often hid her condition. She was dismissed from one job, in part due to time off during episodes. Her definitive identification came in the early 2000s at a national neurology center.

Nevertheless, the inability to plan daily activities around unpredictable pain took its toll. She particularly hated being unable to plan social events, being seen as flaky as a colleague, and even having to be looked after by her children during the paralysis caused by the most severe episodes. “It robs you of the small liberties we don't appreciate until they're gone,” she says. She remembers winning tickets for a significant concert, only to have an episode inside a portable toilet.

Headaches have been documented across the ages. “The first account of headache originates from the Mesopotamians in 4000BC,” write authors in a book on the topic. They attributed the disease to an malevolent spirit who afflicted his victims' heads.

Ancient medical records propose unusual remedies for what modern observers would classify as a headache disorder. In the medieval times, migraine was identified as a distinct disorder, with treatments including herbal concoctions to other, more superstitious remedies.

It was a European physician who provided the initial detailed description of a cluster headache. In his writings, he speaks of a patient “suffering with a very intense headache occurring and vanishing each day at specific hours”.

The disorder were only officially classified by international headache societies in the late 1980s. From the 1960s to the 1990s, they were thought to be caused by a issue with a key artery which supplies blood to the brain. Leading specialists in treating the disorder note this.

In 1998, scientists published the results of a study for which they had triggered cluster headaches in patients and observed the attacks in a brain scanner. The results, featured in a prominent journal, showed activation of the hypothalamus, which is in charge for human circadian rhythm, when patients were in pain, and a deactivation when they recovered.

In spite of such progress, identification remains delayed. Jamie Charteris's symptoms began in 1986 and felt like “a balloon being inflated behind my one eye”. GPs thought he had sinus problems; he underwent multiple surgeries before eventually being correctly identified in 2014, after a physician looked up his symptoms.

Specialists say delays in diagnosing and managing occur because patients are rarely seen mid-attack. “You're exhausted and low, but not in agony,” a doctor says. He proceeds by ruling out other primary head pain conditions, such as migraine, before diagnosing the disorder. A thorough patient history is essential: on which side do symptoms appear? For how much time? What time of year? Are there triggers, such as alcohol? Specific characteristics such as tearing, sagging eyelids and nasal congestion help verify cluster headaches. Once identified, patients may be referred to specialist clinics. But a lot of first go to emergency rooms or are given unsuitable therapies.

Dorothy Chapman, 78, has experienced cluster headaches for the majority of her life, although she has been free from an attack since recent years. When she was in her 20s, she had her teeth extracted because dentists misinterpreted her pain. She believes the dental profession still need much more awareness. When another patient 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 them through oxygen treatment and medication until the episode eased.

Official guidance on management advise that patients are offered high-dose oxygen and/or a specific medication delivered by injection. No tablets or opioids should be used. Preventive choices include verapamil, which apparently soothes the attacks of some individuals.

But consultant specialists believe the guidance need updating to reflect a clearer treatment pathway and help general practitioners avoid misprescribing. For episodic patients, the treatment window is critical: “The duration of the bout dictates the treatment.” Short bouts with occasional episodes are managed with abortive treatment only. Longer or more severe periods require preventives such as certain drugs, sometimes paired with corticosteroids. Many patients also receive a greater occipital nerve block during a bout – an procedure into the side of the head where the discomfort is that reduces nerve activity.

The official guidelines need revising to reflect a