Excruciating Pain: A Personal Battle With the Enigmatic Suffering of Cluster Headache Syndrome

It began on a gloomy Monday morning in the autumn of 2016. I worked as a teacher, attempting to manage a new class, when a sharp pain erupted behind my right eye. It was followed by rapid jolts, reminiscent of lightning bolts. As the school day came and went, the discomfort subsided and then came back with increased force. Multiple times that day I handed over a colleague with worksheets and hurried to the staff bathroom to douse my face with cool water. I took paracetamol, but the pain remained unrelenting.

The headaches appeared frequently that autumn, and again in the spring, soon forming an yearly cycle. September and October were the most severe, then the late winter. I could anticipate the pattern: aura in the shower, early pangs on the train, full-blown agony in class by 9.30am. In late 2019, a GP eventually sent me to a neurologist and I was diagnosed with cluster headaches.

Cluster headaches often begin with intense pain around a single eye that persists for several hours.

About 1 in 1000 individuals suffer by the disorder, and men are more often affected. Attacks usually start with sudden, excruciating agony focused on one eye that reaches its peak within minutes and continues for up to three hours. Attacks come in clusters, daily or several times a day, and are associated with red or watery eyes, sagging eyelids or facial perspiration. I have an episodic type, which occurs in seasonal bouts; some patients have continuous attacks, defined by the absence of extended symptom-free periods.

What unites sufferers is the intensity. One study scored the pain at 9.7 10, higher than bone fractures or pancreatitis. Another discovered a significant percentage of cluster patients experienced thoughts of self-harm during attacks; the number fell to four percent when they were pain-free.

One patient, 74, a long-term sufferer from Pembrokeshire, isn't surprised. Her episodes began when she was a toddler. “I would hurl myself on the floor and hit my head. That was put down to being a difficult child,” she says. Her symptoms worsened through childhood. Alcohol in her teens, similar to many causes, made things more intense. After having alcohol at her graduation party, she remembers barely being able to see on the transport home.

Her relatives often mistook her attacks as intoxicated episodes. Support finally came from her father and then from her husband, Rod. “I was very fortunate to find such an exceptional person,” she says. Hobbs took clerical work after relocating, but often concealed her condition. She was fired from one job, in part due to time off during episodes. Her breakthrough diagnosis came in the early 2000s at a specialist hospital.

Still, the failure to plan daily activities around unpredictable attacks took its effect. She especially disliked being unable to plan outings, being seen as flaky as a colleague, and even having to be cared for by her children during the incapacitation caused by the worst episodes. “It robs you of the simple freedoms we don't appreciate until they're gone,” she says. She recalls obtaining tickets for a significant concert, only to have an attack inside a facility.

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

Historical healing records suggest unusual remedies for what modern experts would describe as a migraine. In the medieval times, migraine was recognised as a distinct disorder, with therapies ranging from bloodletting to other, more folk remedies.

It was a European doctor who provided the initial detailed description of a cluster headache. In his writings, he speaks of a patient “afflicted with a very severe headache happening and disappearing each day at specific hours”.

Cluster headaches were only officially recognised by international headache societies in 1988. From the 1960s to the 1990s, they were believed to be caused by a issue with a major artery that delivers blood to the brain. Leading specialists in treating the condition note this.

In the late 1990s, scientists released the results of a study for which they had induced cluster headaches in patients and monitored the attacks in a brain scanner. The data, published in a prominent journal, showed increased activity of the a brain region, which is in charge for human sleep-wake cycles, when patients were in discomfort, and a deactivation when they felt better.

Despite such advances, diagnosis remains slow. One man's attacks started in the 1980s and felt like “a modelling balloon being blown up behind my one eye”. Doctors thought he had a sinus issue; he underwent multiple surgeries before finally being diagnosed in recently, after a physician researched his complaints.

Neurologists say wait times in diagnosis and managing happen because patients are seldom seen during an episode. “You're tired 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 detailed history is essential: on which side do signs appear? For how much time? What season? Are there precipitating factors, such as certain foods? Specific characteristics such as redness, drooping eyelids and nasal congestion help confirm the diagnosis. Once diagnosed, patients may be sent to specialist centers. But many first go to A&E or are given inadequate treatments.

Dorothy Chapman, 78, has suffered from the condition for the majority of her life, although she has been free from an attack since recent years. When she was in her twenties, she had her teeth pulled because dental professionals misinterpreted her pain. She believes dentists still need greater awareness. When a sufferer sought help from a support group, it was she who replied. I remember calling a support line during an attack in 2021; a calm volunteer talked them through oxygen therapy and medication until the episode passed.

Official guidance on treatment recommend that patients are offered high-dose oxygen and/or a specific drug delivered by injection. No oral painkillers or opioids should be used. Prophylactic options include verapamil, which apparently soothes the bouts of well-known individuals.

But leading neurologists argue the official guidelines need revising to reflect a clearer clinical process and help GPs avoid misprescribing. For periodic patients, the treatment window is critical: “The duration of the bout determines the approach.” Short cycles with occasional episodes are handled with acute therapy alone. Longer or more severe bouts require preventives such as certain drugs, sometimes paired with corticosteroids. Many patients also receive a greater occipital nerve block during a bout – an injection into the side of the skull where the pain is that reduces nerve signals.

The official guidance need updating to reflect a