Chris Kirkpatrick took to Instagram to shower praise on Timberlake, who revealed Thursday that he was diagnosed with the debilitating disease.

"I've been battling some health issues, and was diagnosed with Lyme disease," Timberlake wrote. "If you've experienced this disease or know someone who has," he added, "then you're aware: living with this can be relentlessly debilitating, both mentally and physically."

Justin Timberlake 'pushed through for months before finally getting answers' with his Lyme disease diagnosis, and his wife, Jessica Biel, has been 'incredibly supportive' through it all, a family source tells PEOPLE.