When Justin Timberlake revealed that he’s been battling Lyme disease on Instagram, it lit up the internet. Some people sent well-wishes, others asked questions about the illness, and a few—of course—propagated bucket loads of misinformation.

The singer-songwriter and actor shared the diagnosis in a social media post at the conclusion of his Forget Tomorrow World Tour.

Pop star Justin Timberlake said he got a brutal case of Lyme disease. What to know about ticks and Lyme disease symptoms and treatment in Arizona.