Canadian pop singer Justin Bieber has said that he has been diagnosed with Lyme disease, an infection caused by bacteria commonly carried by ticks. The 25-year-old singer shared the news in an Instagram post on Wednesday, reports cnn.com. “While a lot of people kept saying Justin Bieber looks like he is on meth etc. they failed to realize I’ve been recently diagnosed with Lyme disease, not only that but had a serious case of chronic mono which affected my, skin, brain function, energy, and overall health,” Bieber wrote. He added: “These things will be explained further in a docu series I’m putting on YouTube shortly. You can learn all that I’ve been battling and OVERCOMING!!” (IANS)