Heartbreak is never fun, but one woman's relationship breakdown took a devastating turn after she lost her ability to walk following a breakup.

The TikTok user, who posts under Miss Nervy, was diagnosed with functional neurological disorder just over six weeks ago, and is now bound to a wheelchair.

The content creator originally shared her story using a series of slides detailing her experience before following it up with an in-depth video a few days later.

The 20-year-old reported feeling her legs tingling when she woke up one Monday morning, which progressed to her not being able to stand or walk.

She went to the doctor, and they performed a CT scan of her spine, which was clear, but she was admitted to the hospital because she couldn't walk or stand.

'I wake up completely unable to move my legs or stand,' she recalled. 'I'm really freaking out about now, it's not longer funny.'

Days later, she still couldn't walk and was this time sent to the neurological ward, where the doctor issued a diagnoses.

'I got so heartbroken I developed a neurological condition which is causing this,' she said.

The college student posted a follow-up video where she answered some of the commonly asked questions about her condition.

'For the past month-and-a-half I have been either in a wheelchair or in a bed, as you see behind me,' she shared in a recent video posted online.

The content creator said she has had several MRIs, CT scans, X-Rays, an EMG, as well as numerous blood tests, but can't find anything physiologically wrong. 

'Everything came back fine,' she shared. 'Everything has been looked at thoroughly.'

She was in hospital for four days the first time she started experiencing symptoms,  and eight days the second time, assuring viewers that the doctors 'checked out everything.'

The young woman added they also tested her eyes, but nothing was out of the norm. 

At the moment, the creator still can't stand and in a comment said her thighs feel similar to how your face feels when the dentist sedates you.

'Kind of numb and then from my knees lower, it's just constantly tingling like pins and needles non stop,' she shared.

Functional neurological disorder (FND) is a neurological condition that affects how the brain and body communicate.

As per Sheffield Teaching Hospitals, Medical News Today and NORD, while the symptoms may appear similar to neurological diseases including those of multiple sclerosis, Parkinson's and epilepsy, and can be just as disabling, they are not caused by structural disease of the nervous system, but instead are a problem with the 'functioning' of the nervous system and are often called 'medically unexplained.'

People with FND appear to lose the ability to control or access their body normally. The 'basic wiring' of the nervous system is intact, but when people with FND try to use it to move, feel or think, they cannot control it normally.

Its cause is poorly understood but scientists have likened it to a glitch in the brain which cause symptoms to continue after they are first experienced because of a physical injury, infectious illness, panic attack or migraine. 

Depending on their condition patients may be given physiotherapy, psychological therapy or occupational therapy – or a mix.