I was suddenly jolted awake by the sound of my husband humming and quietly giggling beside me. At first, I thought he was having a strange dream. I reached over and switched on the bedside lamp.

The light filled the room, but he didn’t react at all.

Instead, he stared blankly ahead and began slowly flapping his arms, as if he wasn’t aware of where he was. My heart started racing. I called his name over and over, but he never responded.

Terrified, I dialed 911.

The paramedics rushed him to the hospital while I followed behind, praying it was something minor. Hours later, a doctor walked into the waiting room with a serious expression.

To my horror, they informed me that he had…