Justin Bieber revealed that he has Lyme disease and had a chronic case of mononucleosis last year, according to TMZ. Justin talked about both in an Instagram post on Wednesday. Justin said, "While a lot of people kept saying Justin Bieber looks like s***, on meth etc. they failed to realize I've been recently diagnosed with Lyme disease." Justin Bieber also revealed he had a chronic case of mononucleosis, which he says "affected my skin, brain, function, energy and overall health." He mentioned that his upcoming documentary would cover his trials over the past few years. "You can learn all I've been battling and OVERCOMING!" he said. With the right treatment, Bieber says, "I will be back and better with NO CAP." Bieber's wife, Hailey, added that her husband had gotten support from Bella, Gigi and Anwar Hadid, all of whom have Lyme disease as well. Bieber released the first single off his new album, "Yummy" on January 3, and has teased an upcoming tour. Bieber's documentary, Justin Bieber: Seasons, drops January 27th on YouTube.