Dr Alex George says he is taking a break to look after his physical and mental health.
The former Love Island star, 30, who was appointed as a youth mental health ambassador for the Government earlier this year, said he had become stressed.
He wrote on Instagram: “It’s been a bit of an up and down week. I always want to be honest… and the last thing I want is for my page to be a highlight of good days, hiding the bad.
“It’s been a long and hard year, which ultimately takes its toll.
“I have really felt it this week and I am aware I need a break.
“I am taking a full week off from Tuesday. Recognising when you are becoming stressed and acting on it, is so important.
“There are good times on the horizon as well as things I want to achieve…
“To be able to do this I need to look after my physical and mental health. Never be ashamed to take a break, when you need it.
“I believe it’s a sign of self awareness and ultimately strength…. be kind to yourself.”
The A&E doctor has been campaigning for better mental health support following the death of his younger brother Llyr last year.
The 19-year-old, who had been due to attend medical school, killed himself after suffering mental health issues.