Excruciating Agony: A Personal Struggle With the Enigmatic Suffering of Cluster Headache Syndrome

It began on a overcast Monday morning in the autumn of 2016. I was working as a teacher, attempting to manage a new class, when a sharp pain bloomed behind my right eye. It was followed by quick stabs, similar to electric shocks. As each class came and went, the pain eased and then came back with increased intensity. Multiple times that day I left a teaching assistant with worksheets and ran to the staff bathroom to douse my face with cold water. I tried ibuprofen, but the agony remained unrelenting.

The headaches returned frequently that fall, and once more in spring, soon forming an annual pattern. September and October were the worst, then the late winter. I could anticipate the pattern: aura in the shower, early pangs on the train, full-blown agony in the classroom by 9.30am. In 2019, a GP eventually referred me to a neurologist and I was diagnosed with cluster headaches.

This condition typically start with intense pain behind a single eye that persists for several hours.

About 1 in 1000 individuals suffer by the disorder, and males are more frequently affected. Attacks typically begin with sudden, excruciating agony around one eye that reaches its peak within a short time and lasts for up to three hours. Attacks occur in cycles, every day or multiple times a day, and are accompanied by tearing eyes, drooping eyelids or facial perspiration. I have the episodic form, which occurs in seasonal cycles; others have continuous attacks, defined by the absence of long symptom-free periods.

What connects sufferers is the intensity. One study scored the sensation at 9.7 10, higher than broken bones or other conditions. A separate found 64% of cluster headache patients reported suicidal thoughts amid bouts; the number fell to 4% when they were pain-free.

Val Hobbs, in her seventies, a chronic sufferer from Pembrokeshire, isn't surprised. Her attacks started when she was a toddler. “I would throw myself on the ground and hit my head. That was put down to being a difficult child,” she says. Her condition worsened through childhood. Drinking in her adolescence, similar to many causes, made things more intense. After having alcohol at her school leaving party, she recalls hardly being able to see on the transport home.

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

Nevertheless, the failure to plan life around erratic pain took its toll. She particularly disliked being unable to plan social events, being seen as unreliable as a co-worker, and even having to be cared for by her children during the incapacitation caused by the worst episodes. “It steals from you of the small freedoms we don't value until they're gone,” she says. She remembers winning tickets for a major concert, only to have an episode inside a facility.

Headaches have been described throughout history. “The earliest account of headache comes by way of the Mesopotamians in antiquity,” write experts in a publication on the topic. They attributed the disease to an malevolent entity who attacked his sufferers' heads.

Ancient healing records suggest unusual treatments for what modern experts would describe as a headache disorder. In the middle ages, severe headache was identified as a separate disorder, with therapies ranging from bloodletting to other, more folk cures.

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

Cluster headaches were only formally classified 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 major artery which supplies blood to the brain. Leading specialists in diagnosing the disorder note this.

In the late 1990s, scientists released the findings of a study for which they had induced attacks in patients and observed the episodes in a brain scanner. The results, published in a prominent medical publication, showed activation of the hypothalamus, which is in charge for human circadian rhythm, when patients were in discomfort, and a deactivation when they recovered.

Despite such progress, diagnosis remains delayed. One man's symptoms began in 1986 and felt like “a balloon being blown up behind my left eye”. GPs thought he had a sinus issue; he had four surgeries before eventually being diagnosed in recently, after a doctor looked up his symptoms.

Specialists say delays in diagnosing and managing occur because patients are seldom seen during an episode. “You're exhausted and depressed, but not in agony,” one says. He works by eliminating other primary head pain disorders, such as migraine, before diagnosing the disorder. A thorough patient history is essential: on which part of the head do symptoms occur? For how long? What time of year? Are there precipitating factors, such as alcohol? Certain features such as redness, sagging eyelids and nasal congestion help verify cluster headaches. Once identified, patients may be referred to dedicated centers. But many first arrive to emergency rooms or are given unsuitable therapies.

A charity trustee, 78, has suffered from the condition 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 extracted because dentists misunderstood her symptoms. She believes dentists still need greater awareness. When another patient sought help from a support group, it was Chapman who responded. The author recalls calling a support line during an bout in early 2021; a reassuring volunteer talked them through oxygen treatment and medication until the episode eased.

Official guidelines on management recommend that sufferers are offered high-dose oxygen therapy and/or a anti-migraine drug administered by injection. No oral painkillers or strong analgesics should be used. Preventive options include a blood pressure medication, which apparently helps manage the bouts of well-known people.

But leading neurologists argue the official guidelines need revising to reflect a more defined treatment pathway and help general practitioners avoid misprescribing. For episodic patients, the treatment window is critical: “The duration of the cycle determines the approach.” Brief bouts with occasional attacks are handled with acute treatment alone. More prolonged or more intense bouts require preventives such as verapamil, sometimes combined with corticosteroids. Many 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 activity.

The national guidance need revising to reflect a