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

It was a dreary Monday in the morning in the autumn of 2016. I was working as a teacher, attempting to manage a new class, when a sharp sensation sprang behind my one eye. It was followed by rapid stabs, like lightning bolts. As each class came and went, the pain eased and then returned with greater intensity. Multiple times that day I handed over a colleague with activities and hurried to the school bathroom to soak my face with cold water. I took aspirin, but the pain remained unbearable.

The attacks appeared frequently that autumn, and again in the spring, soon forming an annual cycle. September and October were the worst, then February and March. I could predict the pattern: a warning sensation in the morning, early twinges on the train, full-blown pain in the classroom by mid-morning. In 2019, a GP eventually referred me to a specialist and I was diagnosed with cluster headaches.

This condition typically begin with severe pain around one eye that persists for three hours.

About 1 in 1000 people are affected by the disorder, and men are more frequently diagnosed. Cluster headaches typically start with abrupt, severe agony around one eye that peaks within a short time and continues for as long as three hours. Episodes occur in cycles, daily or multiple times a day, and are accompanied by red or watery eyes, sagging eyelids or facial sweating. I have the episodic form, which occurs in seasonal cycles; some patients have chronic cluster headaches, characterized by the lack of long symptom-free periods.

What connects sufferers is the intensity. One research paper scored the pain at 9.7 out of 10, more severe than broken bones or pancreatitis. Another discovered a significant percentage of cluster patients reported thoughts of self-harm amid bouts; the number dropped to four percent when they were pain-free.

One patient, in her seventies, a chronic patient from Pembrokeshire, isn't surprised. Her episodes began when she was two. “I would hurl myself on the floor and hit my head. That was attributed to being a difficult child,” she says. Her symptoms deteriorated through her youth. Drinking in her adolescence, similar to several triggers, made things more intense. After drinking sherry at her school leaving party, she recalls barely being able to see on the bus home.

Her family often mistook her attacks as intoxicated episodes. Support eventually came from her father and then from her partner, her spouse. “I was very lucky to find such an understanding person,” she says. Hobbs found office work after moving, but often concealed her condition. She was fired from one job, in part due to time off during episodes. Her definitive identification came in the early 2000s at a specialist neurology center.

Still, the inability to organize life around unpredictable attacks took its toll. She particularly disliked being unable to plan social events, being seen as unreliable as a colleague, and even having to be cared for by her family during the paralysis 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 obtaining tickets for a major concert, only to have an episode inside a facility.

Headaches have been described across history. “The earliest account of headache comes by way of the Mesopotamians in 4000BC,” write authors in a book on the topic. They linked the disease to an evil entity who attacked his victims' heads.

Ancient healing records propose unusual treatments for what modern observers would classify as a headache disorder. In the middle ages, migraine was recognised as a separate condition, with treatments ranging from herbal concoctions to other, more folk cures.

It was a Dutch physician who provided the first comprehensive description 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”.

The disorder were only officially recognised by global medical committees in the late 1980s. From the mid-20th century to the 1990s, they were believed to be caused by a issue with a key artery that supplies blood to the head. Prominent specialists in treating the condition explain this.

In the late 1990s, scientists released the results of a study for which they had induced cluster headaches in patients and observed the attacks in a brain scanner. The data, published in a prominent journal, showed activation of the a brain region, which is responsible for human sleep-wake cycles, when patients were in discomfort, and a reduction when they recovered.

In spite of such advances, identification remains slow. One man's symptoms started in the 1980s and felt like “a modelling balloon being blown up behind my left eye”. GPs thought he had a sinus issue; he underwent four operations before finally being diagnosed in recently, after a physician looked up his complaints.

Specialists say wait times in diagnosing and managing occur because patients are rarely seen during an episode. “You're exhausted and low, but not in agony,” a doctor says. He proceeds by eliminating other primary headache conditions, such as tension-type headache, before confirming the disorder. A thorough history is essential: on which side do symptoms appear? For how long? What season? Are there precipitating factors, such as certain foods? Specific characteristics such as tearing, sagging eyelids and stuffy nose help verify cluster headaches. Once identified, patients may be referred to dedicated clinics. But many first go to A&E or are given inadequate therapies.

Dorothy Chapman, 78, has experienced cluster headaches for most of her adult life, although she hasn't had an attack since recent years. When she was in her twenties, she had her molars pulled because dentists misunderstood her pain. She believes the dental profession still need much more education. When a sufferer sought help from a charity, it was Chapman who replied. I remember calling a support line during an attack in 2021; a reassuring volunteer guided me through oxygen treatment and medication until the attack passed.

National guidelines on treatment recommend that sufferers are offered high-flow oxygen therapy and/or a anti-migraine drug administered by injection. No tablets or strong analgesics should be used. Preventive options include verapamil, which apparently helps manage the attacks of well-known individuals.

But leading specialists believe the guidance need updating to reflect a clearer treatment pathway and help GPs avoid misprescribing. For periodic patients, timing is critical: “The duration of the cycle determines the treatment.” Brief bouts with infrequent episodes are managed with acute treatment alone. Longer or more severe 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 side of the skull where the pain is that decreases nerve activity.

The national guidelines need updating to reflect a