Wilco frontman Jeff Tweedy is overcoming his addiction to painkillers and is in "better shape than I've ever been". The rocker kicked the habit in 2004 after using painkillers to fight chronic migraine headaches. He says he now runs daily, something he's never done, and has stopped smoking. Tweedy says, "Actually, I feel like I'm in better shape then I've ever been. I've been running five or six miles every day and I'm thinking about some races this summer. "I was never able to do that, even in high school, so I'm going good. I haven't had a migraine in almost two years and I haven't had a cigarette in over a year, so all kinds of things are changing for me. "And I'm not exaggerating. I don't think I've ever felt better."