Ariana Grande gave fans an inside look at the trauma she’s suffered since the terrorist bombing outside her 2017 concert in Manchester, England.

The “7 Rings” singer posted a screenshot of scans of her brain on Thursday showing what she suggested was damage from post-traumatic stress disorder.

The screenshot of a text conversation with friends showed a scan of a normal brain alongside one with PTSD damage. Below those scans were a series of images of Grande’s brain, which looked like the one with the PTSD damage.

“hilarious and terrifying,” she wrote above the images. “not a joke,” she concluded.