Collier now volunteers by taking people with disabilities or conditions such as dementia out on trips.
Now an advocate for the British Heart Foundation (BHF), she said she wants to use her platform to raise awareness of heart disease.
“I want to use what I’ve got, and what I have unmasked just over the last couple of weeks, to tell people that heart disease doesn’t have an age, young and old people can get heart disease.
“It doesn’t have to stop you doing what you love”.
Teresa Hicks, of the British Heart Foundation, said the charity had enjoyed following Collier’s time on The Traitors and thanked her for “being a British Heart Foundation faithful”.
“By sharing her recent heart journey, Amanda is helping to raise awareness about cardiovascular disease, which affects around eight million people in the UK.”
She added: “If you have any questions or concerns about heart health… the BHF’s information and support services are here for you. This includes our freephone Heart Helpline, where you can speak with one of our cardiac nurses.”
As well as her life-changing diagnosis, Collier said she had had an “amazing” time on the show.
She described it as “intense, fun and nerve-wracking” and said the missions were “absolutely hilarious”.
