Coldplay frontman Chris Martin has secretly been suffering from agonising ear condition tinnitus for a decade. The 35-year-old singer has a constant ringing sound in his ears, and says it causes painful headaches. He blames the ailment on listening to loud music in his teens. Martin is now forced to wear special earphones on stage to stop the condition getting any worse. "I have had tinnitus for about 10 years, but since I started protecting my ears it has not got any worse,"