Sufjan Stevenssays that he’s relearning how to walk after being hospitalized with the rare autoimmune disorder Guillain-Barre syndrome.

“Last month I woke up one morning and couldn’t walk,” Stevens, 48, wrote.

), echo-cardiograms, etc.

Sufjan Stevens

Sufjan Stevens performs at the Oscars in 2018.Kevin Winter/Getty Images

the neurologists diagnosed me with an autoimmune disorder called Guillain-Barre Syndrome."

“It’s a slow process, but they say I will ‘recover,'” he continued.

“It just takes a lot of time, patience, and hard work.

He also praised his doctors for their dedication and for helping to “keep me alive.”