The TV presenter, 64, opened up about his symptoms during a conversation with Gaby Roslin on BBC London.
“Last week I had flu-like symptoms,” he said.
“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.”
He believes the reason why he knew he didn’t have seasonal flu was because of the “sheer exhaustion” he was experiencing.
“You’d know if you caught [coronavirus],” he continued. “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…”
He shared a homemade remedy he made to fend the illness off.
“There’s a concoction – four thieves vinegar – and I made it up. Basically, it is cider vinegar with as many cloves of garlic in it as you can take and four different kinds of herbs to represent the four thieves.
“I’ve got a bit of rosemary, parsley, and lemon grass, and bay leaf. [I] leave it to steep and just have a tiny little bit every day.”