Groundhog Day Syndrome is the feeling that you're reliving the same day over and over again. Nothing has changed, and it seems as though you're doing an identical routine every single day and week. It has to do with brain functioning often the result aging or head injury. Sometimes a change in daily routine helps but it depends brain processing - remembering that the brain is a 'computer'.

'Groundhog Day' syndrome made a man feel like he was reliving the same events   Live Science - May 25, 2023

A man in his 80s gradually started feeling that he was witnessing the same events again and again. This disturbing symptom, somewhat reminiscent of the 1993 movie "Groundhog Day," likely emerged as a rare complication of Alzheimer's disease, according to a new report of the case.

According to the report the man once complained to his e-book manufacturer because he thought it kept showing the same material, and he also contacted a technician about his television repeatedly showing the same news.

When describing his predicament in his own words, he said, "Wherever I go, the same people are on the side of the road, the same cars behind me with the same people in them … the same person gets out of the cars wearing the same clothes, carrying the same bags, saying the same things … nothing is new."

This condition, called deja vecu with recollective confabulation (DVRC), is sometimes seen in neurodegenerative diseases such as Alzheimer's, according to the report. Neurodegenerative diseases are those in which cells of the central nervous system stop working and ultimately die. These conditions worsen over time, and no cures yet exist.