The bubbly star was said to be getting ready at her make-up artist’s house at around 9am when the incident happened.
A source told The Sun: “Gemma had filming commitments this morning but everything has ground to a halt following her shock collapse.
“She was getting ready for the day at her make-up artist Lisa’s home and then nipped to the bathroom.
“The next thing Lisa knew was that Gemma had fallen to the floor – so she called for immediate medical attention and may now need to go to hospital.”
It’s been reported that Gemma was suffering with extreme stomach pains and it could be due to kidney stones.
The source added: “Gemma has struggled with some ill health recently after suffering with kidney stone symptoms.
“Family and friends are hoping that she will make a rapid recovery but for now TOWIE filming has been put on hold.”
Just 10 hours ago, Gemma posted several videos on her Instagram page which showed her enjoying a night out with her co-star James “Arg” Argent.
The clips show Arg singing along to Al Green’s hit song Let’s Stay Together.
Gemma captioned one of the videos: “I just love it when you sing we have had the best time celebrating your birthday I’m actually so sad to go home singing means your happy #letsstaytogether.
“I’m so so so proud of you @real_arg I love to see you sing I will watch this so many times lol over and over ha ha.”(sic)
It has been claimed the 36-year-old Essex star may need to be rushed to hospital if her situation doesn’t improve.
Express.co.uk has contacted a representative for Gemma asking for comment on these reports.