Fans are fearing for the shock jock’s health after he failed to appear on his breakfast show on Thursday.

Kyle Sandilands was nowhere to be seen on Thursday’s episode of his KIIS FM breakfast show, days after he claimed he’d suffered a “stroke” while live on-air.

The controversial radio host, who was diagnosed with a brain aneurysm and other health issues earlier this year, sounded confused during Tuesday’s episode, continually messing up his words.

After some fumbling he said: “I think I’ve had a stroke. I feel that I’ve said the wrong words multiple times this morning, and I’m not super tired.”

Kyle Sandilands wasn’t on his radio show on Thursday. Picture: Instagram
His co-host, Jackie ‘O’ Henderson then quickly interjected: “No, you haven’t.”

A producer on the show then appeared to agree with Sandilands, telling listeners that the host had confused the word “mattock” with “Matlock”.

Sandilands has struggled with maintaining a healthy lifestyle in recent years, and earlier this year, was diagnosed with a brain aneurysm.

While chatting with his co-star last month, Sandilands admitted that he’s finding physical activities harder recently after gaining weight.

Sandilands has been having health struggles in recent years. Picture: Instagram
He revealed that he’d put on 12kg since last year, now hitting 138kg on the scales.

“I’m 138, I thought I was massive. I’ve been a bit … I don’t know whether ‘depressed’ is the word? Ever since this aneurysm thing came up a year ago,” he said.

“I brushed it off inside. My wife is on me about it, asking if I would like to come for a walk with her and (their son) Otto. I would like to, but just too fat and lazy to go.”

Sandilands went on to confess that despite putting on weight he was not bothered to cut out junk food and change his diet.

“I also use an opportunity to eat a packet of chicken and biscuits! I know I’m doing myself in,” he said, adding that he went under a series of tests this week to gauge how good his health is.

“I did all these scans yesterday, haven’t got the results yet. If I’m good, then I will put together a club, ‘Kyle’s Big Fatso Club’, where I want others to join me in my slow march to healthiness. Who is with me?” he said.