Paul O'Grady has been struck down coronavirus despite stepping down from work to self-isolate due to heart problems.
The broadcaster, 64, said he hasn't been tested but thinks he "most definitely" had Covid-19.
Speaking to BBC London presenter Gaby Roslin, he said: "I’m alright now. Last week I had flu like symptoms. I didn’t have the cough bad, I certainly didn’t have the temperature or anything like that so I just got on with it.
"That was when the heating had gone so it was minus two down here and freezing and I thought someone had got it in for me. I’m fine now.”
When if he had Covid 19, he said: “Most definitely. That’s knocking about, but there’s also flus and seasonal colds going about so you’ve got to tell yourself and learn the difference.
"The coronavirus - you’d know if you caught that. I lay on the couch with the fire on and the dogs on top of me moaning. When you are lying on the couch dying or you think you are. It was sheer exhaustion like Chris Evans had too.”
It comes weeks after Paul stepped down from his BBC Radio 2 show to self-isolate due to his heart problems.
The star has had three heart attacks in the past and his underlying medical condition put him in the 'at risk' group that have been advised to stay indoors during the crisis by experts.
Paul left a message for fans of his show explaining his decision and wishing them support.

He began the answer machine message by saying he "never expected this to happen."
"I'd only been back for one show after an absence and I'm off again!" he laughed.
"But I'm one of these people who falls into the category of 'underlying health problems' and that's because I've had heart attacks," he explained.
"I've been strongly advised to self-isolate, so that's exactly what I'm doing. I'm down in the wilds of Kent with a very lively five weeks old puppy, so I've got my hands full and I've got plenty to do, and I'd just like to say to everybody else who's self isolating - good luck and keep healthy and look after yourselves.
"And a big thank you to everyone in the NHS for all they're doing," he added.
"I'll speak to you all when all this is finished so take care and once again Paddy, thanks very much and have a good show," he said to his replacement Paddy McGuinness.