Unbearable Pain: My Fight Against the Enigmatic Suffering of Cluster Headache Syndrome

It began on a overcast weekday morning in the autumn of 2016. I worked as a educator, attempting to manage a new group of students, when a sudden sensation bloomed behind my one eye. Then came quick shocks, reminiscent of electric shocks. As the school day came and went, the discomfort eased and then returned with increased intensity. Multiple times that day I left a colleague with activities and ran to the school bathroom to douse my face with cool water. I tried aspirin, but the agony remained unbearable.

The attacks returned frequently that autumn, and again in the spring, soon forming an yearly cycle. September and October were the most severe, then February and March. I could anticipate the pattern: aura in the shower, early pangs on the commute, full-on agony in the classroom by 9.30am. In 2019, a GP eventually referred me to a neurologist and I was diagnosed with cluster headache disorder.

This condition typically begin with severe discomfort behind one eye that lasts up to three hours.

About 1 in 1000 individuals suffer by the condition, and men are more frequently diagnosed. Cluster headaches typically start with abrupt, severe pain around one eye that reaches its peak within a short time and continues for as long as three hours. Attacks come in clusters, every day or multiple times a day, and are associated with tearing eyes, drooping eyelids or face perspiration. I have an episodic type, which occurs in seasonal cycles; others have continuous attacks, characterized by the lack of extended pain-free periods.

What unites sufferers is the intensity. One research paper rated the sensation at 9.7 out of 10, more severe than bone fractures or pancreatitis. A separate found 64% of cluster headache patients reported thoughts of self-harm amid attacks; the figure dropped to four percent when they were not in pain.

Val Hobbs, 74, a chronic patient from Wales, isn't surprised. Her attacks began when she was two. “I would throw myself on the floor and hit my head. That was put down to being spoiled,” she says. Her symptoms deteriorated through childhood. Drinking in her adolescence, like many triggers, made things more intense. After having alcohol at her school leaving party, she recalls hardly being able to see on the bus home.

Her relatives often interpreted her attacks as drunken episodes. Understanding eventually came from her parent and then from her husband, Rod. “I was very fortunate to find such an exceptional person,” she says. Hobbs found office work after relocating, but often concealed her condition. She was fired from one job, in part due to time off during attacks. Her definitive identification came in the early 2000s at a specialist hospital.

Nevertheless, the inability to plan life around erratic pain took its toll. She particularly hated being unable to plan social events, being seen as flaky as a co-worker, and even having to be cared for by her family during the paralysis caused by the most severe episodes. “It robs you of the simple freedoms we don't value until they're gone,” she says. She recalls obtaining tickets for a major concert, only to have an episode inside a facility.


Headaches have been described across history. “The earliest description of headache originates from the Mesopotamians in antiquity,” write authors in a book on the topic. They linked the ailment to an evil entity who afflicted his sufferers' heads.

Historical healing records propose unusual remedies for what some observers would classify as a headache disorder. In the medieval times, severe headache was identified as a separate condition, with therapies ranging from herbal concoctions to other, more folk cures.

It was a European doctor who provided the initial comprehensive account of a cluster headache. In his medical observations, he speaks of a patient “afflicted with a very severe headache occurring and vanishing each day at specific hours”.

Cluster headaches were only formally recognised by international headache societies in 1988. From the mid-20th century to the 1990s, they were believed to be caused by a issue with a key blood vessel which supplies blood to the brain. Leading specialists in diagnosing the condition explain this.

In the late 1990s, scientists published the findings of a research project for which they had triggered cluster headaches in patients and observed the attacks in a imaging machine. The data, featured in a major journal, showed activation of the hypothalamus, which is in charge for human sleep-wake cycles, when patients were in pain, and a deactivation when they felt better.

Despite such advances, diagnosis remains delayed. Jamie Charteris's attacks started in 1986 and felt like “a modelling balloon being inflated behind my one eye”. Doctors thought he had a sinus issue; he underwent multiple operations before eventually being correctly identified in recently, after a doctor looked up his symptoms.

Specialists say wait times in diagnosis and managing occur because patients are rarely seen mid-attack. “You're exhausted and low, but not in severe pain,” one says. He proceeds by eliminating other primary head pain disorders, such as tension-type headache, before diagnosing cluster headaches. A detailed patient history is crucial: on which part of the head do signs occur? For how much time? What season? Are there precipitating factors, such as certain foods? Certain characteristics such as redness, drooping eyelids and stuffy nose help verify the diagnosis. Once diagnosed, patients may be referred to dedicated clinics. But many first go to A&E or are given inadequate therapies.

A charity trustee, in her late seventies, has experienced cluster headaches for the majority of her life, although she has been free from an attack since 2016. When she was in her twenties, she had her molars pulled because dentists misinterpreted her symptoms. She thinks the dental profession still need much more education. When a sufferer sought help from a charity, it was she who replied. The author recalls calling a support line during an bout in early 2021; a reassuring advisor guided me through oxygen treatment and medication until the episode passed.

National guidance on management advise that patients are offered high-dose oxygen and/or a anti-migraine drug delivered by nasal spray. No tablets or strong analgesics should be used. Prophylactic choices include verapamil, which reportedly soothes the bouts of well-known individuals.

But consultant specialists argue the official guidelines need revising to reflect a more defined treatment process and help GPs avoid incorrect prescriptions. For episodic patients, the treatment window is critical: “The duration of the bout determines the treatment.” Brief cycles with occasional episodes are handled with abortive therapy alone. Longer or more severe bouts require preventives such as verapamil, sometimes combined with steroids. A significant number of patients also receive a greater occipital nerve block during a bout – an procedure into the side of the skull where the discomfort is that reduces nerve signals.

The national guidance need updating to reflect a
Karen Davenport
Karen Davenport

Elara Vance is a UK-based astrophysicist and science communicator with over a decade of experience writing about space and technology.