Justin Timberlake battling Lyme disease, faced 'relentlessly debilitating' pain during world tour

Justin Timberlake revealed he's been diagnosed with Lyme disease.

In an Instagram post shared to celebrate the end of his Forget Tomorrow World Tour, Timberlake clued fans in on the health struggles he's been facing.

"As many of you know, I’m a pretty private person. But as I’m reflecting on the tour and festival tour – I want to tell you a little bit about what’s going on with me," he wrote in his social media caption. "Among other things, I’ve been battling some health issues, and was diagnosed with Lyme disease ...