United Kingdom, Feb. 19 -- Pete Doherty has been warned he could "lose" his toes by doctors amid his battle with type 2 diabetes.

The Libertines rocker has been forced to perform from a chair on the 'Can't Stand Me Now' group's European tour on doctor's orders.

As reported by The Sun, he told fans onstage in Munich, Germany this month: "I saw the doctor today and he said you need to stay off your feet as much as you can otherwise you'll lose your toes."

The 45-year-old musician has also had to start wearing orthopaedic shoes to ease any pain in the feet.

Recovering addict Pete had swapped hard drugs for cheese and other calorific foods before being diagnosed with diabetes.

Last year, Pete told the Guardian's Saturday magazine: "I gav...