Two cases of Anterograde Amnesia : UK man & Woman with rare amnesias wake up thinking every day is March 14, 2005 or October 15, 2014

Yes, 2 separate cases of Anterograde Amnesia.

Reverse Groundhog Day: U.K. man wakes up every day thinking it’s March 14, 2005 and doctors have no idea why

Groundhog Day: Woman with rare amnesia wakes up thinking every day is October 15, 2014

Like in the RomCom movie 50 first dates with Adam Sandler and Drew Barrymoore, these two people in UK have memory loss making them stuck in time.

It is easy to confuse that with Groundhog Day like these two newspaper articles did, but its NOT a time loop. It is a memory loss like in "50 first dates".

50 First Dates is a 2004 American romantic comedy film directed by Peter Segal and written by George Wing. The film stars Adam Sandler as a lothario veterinarian and Drew Barrymore as an amnesiac, along with Rob Schneider, Sean Astin, Lusia Strus, Blake Clark, and Dan Aykroyd.

Most of the film was shot on location in Oahu, Hawaii on the Windward side and the North Shore. Sandler and Barrymore won an MTV award.

The fictitious memory impairment suffered by Barrymore's character, Goldfield's Syndrome, is similar to short term memory loss and Anterograde amnesia.

The film received mixed reviews from critics. Rotten Tomatoes gives the film a score of 44% based on 172 reviews, and the site's consensus states [that the] "Gross-out humor overwhelms the easy chemistry between Adam Sandler and Drew Barrymore, who bring some energy and yucks to this tale of a girl with short-term memory loss and the guy who tries to get her to love him."

In an article in the BMJ on depictions of amnesia in film, clinical neuropsychologist Sallie Baxendale writes that 50 First Dates "maintains a venerable movie tradition of portraying an amnesic syndrome that bears no relation to any known neurological or psychiatric condition". A 2010 article in the Daily Mail newspaper claimed a similar condition afflicted a UK woman who cannot remember anything after 1994 as a result of two car accidents (one in 1985 and the other in 1990). The article quotes Dr. Peter Nestor, a neuroscience specialist at Cambridge University, who said "It is reasonably rare to have this kind of amnesia but it does exist."

In 2010, researchers described a woman who developed the kind of memory impairment after she was involved in a car accident. She described that her memory was normal for events on the same day and that overnight memories for the previous day were lost. However, a neuropsychological test did reveal some improvement in recall for tasks which she had, unknowingly, performed the previous day. Though the woman claimed not to have seen 50 First Dates prior to her 2005 accident (but has watched it several times since), she stated that Drew Barrymore was her favorite actress, leading researchers to conclude that her condition might have been influenced by some knowledge of the film's plot, and its impact upon her understanding of amnesia.

Ten-second-Tom's ten-second memory is similar to the second-to-second consciousness of Clive Wearing, a British man whose long- and short-term memory centers were destroyed from a viral infection of the brain caused by the herpes virus.

It is Anterograde Amnesia, NOT retrograde as the Plymouth Herald article wrongly mentions.

Reverse Groundhog Day: U.K. man wakes up every day thinking it’s March 14, 2005 and doctors have no idea why

WASHINGTON — The man, called only “WO” by his physicians, woke up on on March 14, 2005, at his military post in Germany. He headed to the gym, where he played a 45-minute round of volleyball, then returned to his office to answer a backlog of emails.
In the afternoon he went to his dentist for a routine root canal.
Every day since, WO wakes up thinking it’s the morning of March 14, 2005, believing he is still in Germany and this is the day of his dentist appointment. His life is something of a Groundhog Day in reverse.
From that moment in the dentist’s chair a decade ago, he hasn’t been able to remember almost anything for longer than 90 minutes. Then he forgets it, a switch flips, and he’s back to March 14, 2005.
The case, which WO’s doctors Gerald Burgess and Bhanu Chadalavada dissect in a study published in the journal Neurocase, is indeed a medical mystery.

Groundhog Day: Woman with rare amnesia wakes up thinking every day is October 15, 2014

A WOMAN suffering from a rare form of amnesia wakes up everyday thinking it is October 15, 2014.
In a story which sounds not unlike the script from Guy Pierce film Memento or the Adam Sandler classic 50 First Dates, Nikki Pegram has to check her memory notebook each morning just to find out what's happened to her – and the world – in the last nine months.
She soon has to come to terms with the fact that she's not 27 any more, and it's not last year.
Nikki talks to her partner Chris Johnson, who has to spend hours each day explaining that she fell and hit her head and so much time has elapsed.
Nikki thinks he's having a laugh at first, until Chris, 39, explains that he does the same thing every 24 hours and shows her the news pages.
He tells her things like the fact Zayn left One Direction, we have a Tory government, and the new royal baby has already been born.
Nikki said: "Every day when I wake up, I have no idea that actually nine months have passed and it's 2015.
Nikki used to be a pub manager and was visiting Kettering General Hospital for a kick boxing injury when she slipped and hit her head on a metal pole.
It's since then that the mum-of-one, now 28, has to relive the same day perpetually, in a horrible sort of déjà vu.
"I remember having my knee looked at getting the results of the X-ray, but after that everything is a blur," she remarks.
"I've been told I was waiting for Chris to pick me up, during that time, I must have lost my balance and fallen over - but I don't remember any of that."
After treatment at hospital, Nikki was discharged and told she had memory loss and wouldn't remember life for a short while. But it's lasted much longer.
"The hardest part of everyday is learning that I no longer have a job, that's it's now 2015 and that I've missed my birthday."