Depersonalisation-derealisation disorder (DPD or DPRD) chronically affects around 1 to 2.4 per cent of the UK population. Common in those who suffered childhood trauma, DPRD is the persistent feeling of separation from the self, or the sense that nothing is real. The percentage of sufferers is similar to those diagnosed with conditions such as schizophrenia and obsessive compulsive disorder (OCD), and yet, hardly anyone has heard of it.

There are a few reasons for this. Dr Emma Cernis, Assistant Professor in Clinical Psychology at Birmingham University, says that it’s because of “two halves of silence.” The first half refers to the fact that, at a clinical level, the research simply isn’t being done. Currently, there’s no medication licensed for the condition and general practitioners (GPs) often meet sufferers with a blank stare.

The other half Dr Cernis is referring to are the sufferers themselves. With a condition that feels so alien, it’s often hard to summon the right kind of language to discuss how you’re feeling, and you’re also worried that if you do, those on the receiving end may think that you’ve truly lost your mind.

I certainly didn’t have the words to describe it when it first happened to me. I was sitting with my partner during lockdown, sick of the Marvel multiverse marathon that we’d previously embarked on. Instead, he managed to cajole me into watching the horror movie Saint Maud.

As I watched the central character careen around the screen, her drunken episodes causing her carefully-constrained life to unravel, I felt as though I was watching her mirror feelings I was slowly being overwhelmed by in my own life. Stumbling into the bathroom, dark spots obscuring my vision, reality seemed to ebb away, until I felt as though I was trapped right alongside Maud. The way that she was kept from the real world, trapped behind a TV screen, was how I began to feel—stuck behind glass, unable to reach through, and connect with my loved ones and the world around me.

This feeling is common for sufferers of DPRD. The British Medical Journal describes the condition as the “as if” disorder due to sufferers’ reliance on metaphor to describe what they’re feeling. Phrases such as “I feel permanently drunk”, “I feel as though my feelings aren’t my own,” and “I feel as though my life is a film” are some of the most common ways people try to express themselves.

Symptoms of DPDR can look like:

• Feeling as if you are living in a dream/movie
• Feeling as though you are ‘in a bubble’ or ‘behind glass’, or ‘like a robot’
• Emotional/physical ‘numbness’
• Distorted perception of time
• Feeling not in control of your speech/movements

— Bounce Black (@bounceblackorg) December 16, 2020

Fast forward two years, my DPRD is in remission and I’m living in Madrid. Due largely to the surrounding hype and a lack of research on my part, my mum and I decided to go and watch Don’t Worry Darling at the cinema. Seeing Florence Pugh battle with conflicting realities, albeit magnificently dressed, I was transported back to my lockdown sofa.

My feelings of unreality took a long time to recede, not helped by the fact that the handle to the cinema door actually came off in my hand when I desperately attempted to exit, further blurring the line between fiction and real life. Walking almost drunkenly through the busy streets, my flat became a beacon of refuge, with the unnaturally fast yet reassuring chatter of Gilmore Girls its perpetual soundtrack.

Over the next couple of days, my feelings receded but my apprehension of watching anything remotely challenging remained. In an attempt to not be stuck watching New Girl and The Office for the rest of my life, I decided to explore why I was finding certain cinema and TV so triggering.

Evelyn Dilkes, a PhD candidate at Essex University and a fellow sufferer from DPRD, is currently studying the condition. She’s quantitatively analysed 400 Reddit posts and an online hub sacred to DPD sufferers due to the absence of community felt in the medical sphere. Through this research, Dilkes has found that one of the largest triggers to people relapsing into a depersonalisation state is in fact, film.

“The simple act of watching a film can remind people of a time when they felt like they were in a film. And that reminder could trigger someone back into this state,” she explained to me over a voice note.

But there are other connective reasons too, Dilkes added. “Spending too much time at a screen is another big reason people can feel depersonalised. Sensory overload can also lead people to feel this way. In the cinema, lights are low, there’s also bright colours and loud speakers. That’s a lot of stimuli and can be too much for someone with DPRD.”

The expert also delved into how she’s personally felt very triggered by watching films in the past. “I would be watching beloved characters and feel no emotional connection to them. It almost feels like what I imagine Alzheimer’s or dementia to feel like—as if you’re forgetting people that you know.”

“People with DPRD also often spend a lot of time thinking philosophically or existentially,” Dilkes continued. “Watching a film can present them with further various existential questions, for example, human behaviour.”

However, it doesn’t always have to be this way: “I now use TV and film as a crutch. While I don’t think I’ll be watching Black Mirror anytime soon, when I start to feel overwhelmed I put on It’s Always Sunny in Philadelphia. These kinds of things make me feel safe.”

When I spoke to Joe Perkins, a chronic DPRD sufferer for over 15 years, and a trustee of DPD charity Unreal, he shared that he also finds using the film metaphor helpful when explaining his condition. “When watching a film, you’re seeing things that you don’t necessarily personally feel connected to, and that’s very similar to how I would see the world. It’s like when you’re having your own romantic relationship, it’s almost as though you’re watching one in a film. DPRD manages to blur the boundaries between viewing and feeling,” Perkins stated.

It’s this extremely intense combination that means that Perkins, like so many of us, can’t really enjoy films. The trustee, however, went on to reiterate: “I can’t really watch films in general, focusing on anything for any length of time is challenging for me.”

That’s also why he is currently helping Unreal to create a documentary about the often dismissed or disregarded disorder. Assisting him on this project is Michael Down, a man who has been suffering from DPRD since 1985.

For Down, film is a crucial tool to try and connect to his emotions: “I’m really into horror. I’m always chasing that feeling but I never really get scared anymore. It’s the same reason I go on roller coasters—I’m looking for a bit of a thrill because I am quite divorced from emotions and reality.”

This form of media consumption does seem to have succeeded in being somewhat positive for Down. He’s featured in the documentary, as well as helping to create it, and has found the process to be therapeutic. “It’s weird to relive these past emotions. The mental health provisions when I first started experiencing symptoms were really bad—the last days of the old school asylums,” he told me, adding, “Living without a diagnosis for so long definitely took its toll. By making this documentary, we’re hoping other people don’t have to go through the same experience.”

Film is also helping the condition become more widely understood by the general public. DPRD is often incredibly difficult to put into words, and so I asked Down how he managed to transfer this feeling into a visual format.

“I’ve been doing some tests with some old Soviet lenses that I’ve got from the 50s and 60s,” he explained. “I’ve put them on my modern camera and they’ve got a mental depth of field. It’s really shallow but almost dream-like. Your nose will be in focus but your eyes will be out of focus. To me, that works really well to show that type of immersion. I’ve also been playing with a staggered ghosting effect, like a trace. That’s provided some visceral reactions in other people as well. For example, I showed Jane, who is the head of the charity, some clips and she had to leave as she found it so triggering.”

After speaking to fellow sufferers, it seems as though my future doesn’t necessarily have to be consumed by mindless rom-coms. As Dilkes previously explained, while this might be something I turn to for refuge during times of emotional vulnerability, it doesn’t mean that I have to avoid anything R-rated for the rest of my life (I just sat through, and actually enjoyed, The Banshees of Inisherin, a personal best).

And, if projects like the documentary being undertaken by Down and Perkins get off the ground, this form of media could actually be a valuable tool to further the awareness and treatment of DPRD. All of this to say, film itself might actually be the key to a non-embarrassing Netflix account.