The Fun House star faced snakes and cockroaches in the 'Bushman's Bungalow' challenge, which saw him battle his way through a deserted shack.
After returning to the camp, he told his fellow celebrities: "It was a hideous ordeal. It involved horrible carcasses, rats, bandicoots.
"It could not have been more horrendous - it was very, very, very, very difficult, like you can't imagine, it nearly killed me."
The 50-year-old believes he is being held accountable by the public for his teddy bear prank on Lorraine Chase.
I'm a Celebrity... Get Me Out of Here continues tomorrow night at 9pm on ITV1.