Photo Credit: Jeffrey Ufberg/Wireimage
"Been super sick lately but u guys are carrying me. thank u for the love," he Twittered Friday. "Thanks 4 the kind wishes. Im tough. Im Canadian. Love yall."
The Biebs mustered through a performance on Saturday night in New Jersey, while his State Fair concert was rescheduled for Wednesday night.
"Really dont know what to twitter," he posted Sunday. "I'm getting rest right now and trying to recover from the not so good news from the doctor..."
He didn't go into any more detail about what his medical team advised, but we hope he gets well soon!
Send your well wishes to Justin Bieber below!