The scan of Ariana's brain clearly shows the severe effects post-traumatic stress disorder has had on her, but offered no other explenation as to what her diagnosis is.
Grande said in the July issue of British Vogue she was experiencing "signs of PTSD" following the Manchester bombing in May 2017. She then posted four shots of her brain with multiple areas lit up, similar to the one showing PTSD.
"I know those families and my fans, and everyone there experienced a tremendous amount of it as well", Grande said of suffering the symptoms of PTSD.
The singer captioned the story as, "Hilarious and terrifying".
Complaining of dizziness since the attack, she added: "That's what everyone was telling me". I feel like I shouldn't even be talking about my own experience-like I shouldn't even say anything.More news: Los Angeles Lakers, coach Luke Walton agree to part ways
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"Didn't mean to startle anyone with my brain thingy", she wrote on Instagram.
Grande explained that she didn't "mean to startle" her fans. "I don't think I'll ever know how to talk about it and not cry".
"When I got home from tour, I had really wild dizzy spells, this feeling like I couldn't breathe". For example, hypervigilance. It's noticing everything and constantly scanning my environment; being alert even when I'm trying to sleep - it's depleting and it never stops.
The Thank U, Next hitmaker has been battling the anxiety disorder following the terrorist bombing outside her Manchester Arena show on 22 May 17, which killed 22 people and left hundreds injured.
"Most people are just diagnosed on symptoms, and you don't know what's really going on in their brain, which makes treatment hard", he added.
"I wish there was more that I could fix", she said, according to People.