Pakistan, Aug. 2 -- Justin Timberlake is opening up about his health. As the musician wrapped the final dates for his The Forget Tomorrow World Tour, he shared a personal message about what has been going on off stage.

"Well, as these two incredible years come to an end and I look forward to the future, I wanted to write something from the heart," he shared on Instagram July 31. "It's not an easy task to try to contextualise the whirlwind of touring-but, I will try" The "Rock Your Body" singer went on to note that his concert journey "has been the most fun, emotional, gratifying, physically demanding and at times, grueling experience."

"As many of you know, I'm a pretty private person," he continued. "But as I'm reflecting on the tour a...