"Hilarious and terrifying", she subtitled, adding that it is "not a joke".
"There is no doubt that PTSD changes the way the brain reacts to emotional stimuli related to trauma and the like, but there is no brain imaging test to diagnose PTSD." he told CNN.
"I know these families and my fans, and everyone there has also experienced a lot," said Grande about the symptoms of PTSD. "I feel I should not even talk about my own experience – as if I do not even have to say anything."
The supporters of Grande have expressed concern over the 25 years on social media. Many urge him to move away from the spotlight to heal himself.
"I just hope that she will not overwork herself and no longer exhaust herself mentally / physically," one person wrote on Twitter.
"Honestly, she needs a break, a very long one, just to heal completely and assimilate everything that has happened to her," wrote another.
After seeing the answers to her brain scan message, the singer told a story on Instagram in which she said she was doing her best, even though her brain "looks like the world map ".
"I did not want to surprise anyone with my brain," she wrote on Instagram. "I love science and seeing the physical reality of what's going on there was incredible for me, and one day when I'm better healed, we can talk more about it."