A teenager from Chicago, Illinois, wakes up every single day thinking that it’s June 11, which is the day when she suffered a traumatic brain injury.

The brain injury she sustained makes her memory restart itself every 2 hours.

Riley Horner, the teenager, got accidentally kicked in the head during a dance.

During her interview with WQAD, a local news agency, said, “I have a calendar on my door and I look and it’s September and I’m like ‘Whoa!’”

She added, “People don’t understand — it’s like a movie.”

Riley was dancing on June 11 when she got kicked in the head accidentally.

But even after taking a number of trips to the hospital, the doctors are baffled with her memory condition.

Sarah Horn, the mother of Riley, said, “They tell us there’s nothing medically wrong. They can’t see anything. You can’t see a concussion, though, on an MRI or a CT scan. There’s no brain bleed, there’s no tumor.”

To remember everything, Riley writes notes on her notebook and takes pictures on her phone so she could remember important things.

Riley also forgets any major event that happens in the day.

Her mother said, “My brother passed away last week and she probably has no idea. We tell her every day but she has no idea about it.”

The doctors said this could be a life-long problem.

Her mother said they need help from somebody who knows more about this condition.