Yup. It was very frightening.
About 15 years ago I was partying in Singapore with my friend Beth, who has a very distinctive voice. We were drunk off our heads for an entire week on a shitload of Long Island iced tea and arat (banana rum).
The day we were leaving, I got a taxi to the airport at 5am after drinking arat until 3. Beth was due to get a cab about an hour later, as she was on a different flight. After checking in, I was walking through the airport, and I heard Beth talking somewhere behind me. I thought that maybe she’d got a taxi earlier than planned and happened to be in the concourse already. I turned round and scanned the crowd for her, but didn’t see her. I was a bit disappointed as I’d have liked to have gone for a coffee or something before we flew.
So I boarded the plane and we took off, and about 10 minutes into the flight, I heard Beth’s voice again. I knew there was no way she could possibly be on the plane, and became seriously freaked out. I looked around me for the source of the voice, and realised that what I could actually hear was a woman speaking Chinese a few rows back. The moment I realised this, the woman’s voice resolved into her own.
Beth’s voice continued on and off for the entire flight, and I really started to get freaked out. It was always the same pattern: if there was a woman speaking, whose voice I couldn’t quite hear, it sounded like Beth; the moment I could hear her distinctly, Beth’s voice went away.
I was terrified that I was losing my mind, and started to have what I now know to be a panic attack, and the feeling of the panic attack made me think I was indeed going insane, and triggered yet another panic attack. I was stuck in a feedback loop of auditory hallucinations and panic attacks. I was crying and shaking and hyperventilating under a blanket. Luckily I had a row to myself so nobody saw.
Eventually I got to Dubai to change planes, and felt OK again. However, after about an hour in Duty Free, I suddenly became convinced there was a bomb in the airport. I was getting cold sweats down my back, and wanted to stay as far from the gates as possible, as this was where I thought the bomb was. I stood behind a pillar.
Eventually got onto the next plane, and Beth’s voice started again, together with the panic attacks. Arrived in London feeling absolutely horrible, and got on the Tube into the city, and there was a Bangladeshi family in the same carriage, the matriarch of which was also speaking with Beth’s voice. Panic attack again. I eventually walked closer to her, and when I got close enough to her to make out individual words in her language, Beth’s voice went away. The skyline of London passing the carriage looked completely two-dimensional, too, like it was painted on a cloth.
I went to the pub with my brother and had a few beers, and the symptoms stopped, but that night I woke up with the feeling that Beth’s soul had entered my body, and that I had lost my own identity. I then felt a feeling of intense loss and nostalgia for my former self. I lay in the dark, and my entire body felt like it had an electric current running through it.
As I lay there, I knew I was experiencing symptoms of madness, and determined that if they hadn’t gone away in a month, I would have to get myself institutionalised, or else end my life, because it was unbearable.
The next morning I couldn’t make up my mind if I wanted tea or coffee when I was asked, and I started crying again.
By the end of that day, all the symptoms had worn off, but for the next six months or so I was constantly terrified that this kind of thing would kick off again, and I ended up second guessing everything I sensed or experienced, scrutinizing it for any signs of psychosis, but it never came back, and eventually I relaxed about it.
In retrospect, I think it was alcohol withdrawal that caused the problems, evidenced by the beer stopping the symptoms temporarily.
Nothing like it has ever happened since. I don’t drink liquor any more.