James said Wednesday after the Miami Heat's shootaround that he's been fighting a head cold for the past three days that has been draining him. He said he's been treating it as best as he can with medication and extra rest.
"I'm taking everything you can get from 7-Eleven," James said. "I've been sick since we got here."
While James said the congestion has made it hard to sleep and that it's affecting his energy on the court, he added that's it not so bad it would prevent him from starting Game 2.
James struggled in the Heat's Game 1 loss to the Bulls, scoring just 15 points on 5-of-15 shooting. James did not blame his performance on the illness and has been able to get through all of the Heat's practices and workouts over the last few days.
Brian Windhorst covers the NBA for ESPN.com. ESPN reporter Rachel Nichols contributed to this story.