Taylor Swift | The Eras Tour - Hamburg, Germany
(Photo by Gregor Fischer/TAS24/Getty Images for TAS Rights Management ) (Photo by Gregor Fischer/TAS24/Getty Images for TAS Rights Management )

It seems the Swiftys are losing their minds during the concert — and after.

Millions of fans pay hundreds of dollars for a ticket to gather at Taylor Swift's Eras Tour to enjoy an unforgettable evening, but to many concert-goers dismay, they're drawing a blank the next day.

Although it may seem bizarre, fans have been reportedly claiming to suffer from "post-concert amnesia," according to the 'BBC.'

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According to the news outlet, psychologists say the combination of emotions and time may be the reason behind the mystery occurrence, including out-of-body experiences and entering a dream-like state for what can last for over 40 songs.

Now, Swifties have been taking to social media to report the peculiar aftermath of their "amnesia," revealing they've lost key moments during the Eras Tour concert that left them scratching their heads.

Fellow Swifty Barrie Berger details her experience while making it clear that the megastar's concert was the best experience of her life — despite the fact that she doesn't remember much from the show. "If I didn't have the set list beforehand, I would've had no idea what she actually said. In the moment, it was like having an out-of-body experience," she claimed, per 'Yale Daily News.'

Taylor Swift | The Eras Tour - Hamburg, Germany
(Photo by Gregor Fischer/TAS24/Getty Images for TAS Rights Management ) https://www.gettyimages.com/detail/news-photo/taylor-swift-performs-onstage-during-taylor-swift-the-news-photo/2163299712?adppopup=true

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"I remember trying so hard to remember everything because I spent a lot of money and a lot of time," a second Swifty, Gabriela Mendoza Cueva, confirmed. "I think I just had so much adrenaline from being hyped up that I don't remember a lot of things."

Scientists have even begun to study the phenomenon, with a pre-published review by Nathan Carroll, DO MBA and several other colleagues called "Here And Then Swiftly Gone: Taylor Swift-Induced Amnesia." TGA — transient global amnesia — causes changes in blood pressure which affect the brain's hippocampus, a portion of the brain that plays a major role in learning and memory.

"These fluctuations in blood pressure are thought to affect the ability of your brain to record episodic memory, giving rise to transient global amnesia," Carroll stated, per 'YDN.'

Taylor Swift | The Eras Tour - Mexico City, Mexico
(Photo by Hector Vivas/TAS23/Getty Images for TAS Rights Management) (Photo by Hector Vivas/TAS23/Getty Images for TAS Rights Management)

"Since the memories do come back, a lot of people don't seek treatment for it, so it's missed all the time," he explained.

The Eras Tour is critically acclaimed and has broken many records.

The tour has sold more than four million tickets and grossed over $1 billion, making it the highest-grossing concert tour of all time.

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Taylor Swift, Eras Tour