Robert De Niro's partner Tiffany Chen reveals she got postpartum Bell's palsy ... trends now

Robert De Niro's partner Tiffany Chen has revealed that she was diagnosed with postpartum Bell's palsy after giving birth to their daughter - explaining that she 'lost all facial function' which resulted in her 'slurring her words' and being unable to 'eat.'

In her first interview since welcoming the Hollywood icon's seventh child, Tiffany, 45, spoke in detail about the horrific condition to CBS Mornings.

In a preview for the sit-down, which will air in full on Friday, the new mother explained that soon after returning home from the hospital following the birth of her and the 79-year-old actor's daughter, Gia Virginia Chen De Niro, in April, she noticed that her tongue had become numb.

She said her whole face soon began to feel 'weird,' but she was unable to pinpoint what was causing the sensation. 

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'My tongue felt strange, it felt a little tingly, it was starting to get a little bit numb,' she recalled to host Gayle King.

'I realized, like, my face just felt weird. I didn't know what the feeling was that I was having. It felt weird.'

Tiffany gazed in the mirror and said it looked like 'everything' on her face was 'falling down' and 'melting on itself.'

She explained that her symptoms continued to worsen and within days, she began struggling to speak.

It was also difficult for her to eat because she said everything would 'come out' of her mouth. 

She revealed: 'I was trying to eat. I went to put just a fork of food in my mouth, and everything came out. I couldn't eat. 

'And then I was starting to slur. I [realized], there's something really going on here.'

A terrified Tiffany decided to call her doctor, who told her to go to the hospital immediately.