It's not merely sadness.
He goes on to describe the way he felt before seeking treatment.
Middleton refers to his illness as a "cancer of the mind".. "It was a tiny spark of light in the darkness".
James Middleton's Instagram might bring you the joy you need in 2019. He explained: "I feel compelled to talk about it openly because this is precisely what my brother-in-law Prince William, my sister Catherine and Prince Harry are advocating through their mental health charity Heads Together".More news: Canadian sentenced to death in China in drug smuggling case
"They believe we can only tackle the stigma associated with mental illness if we have the courage to change the national conversation, to expel its negative associations", Middleton says of his royal family. "It was impossible to let my loved ones know about the torture in my mind", James explained.
According to him, for about a year, his mental health kept deteriorating until he finally sought help.
James says he sees his "ADD as a gift: it accounts for my creativity and emotional intensity".
"I'm starting to impose order on my life", James continued. "I want to speak out, and they are my motivation for doing so".More news: Silva praises Everton's 'personality and character' during Bournemouth victory
Middleton made it clear that he is not slamming the educational system but that because he did not know his brain worked differently, he had a really hard time.
James also thanked his dogs for helping him throughout his recovery. "Their anxious texts grew more insistent by the day, yet they went unanswered as I sank progressively deeper into a morass of despair", he writes.
Pop culture website Hello Giggles summed up the surprised reaction to James Middleton, writing: "We were today years old when we found out Kate Middleton has a hot brother who breeds dogs, looks like a bearded Jude Law, and just made his Instagram public".
He was able to keep the symptoms at bay with medication, but that affected his social life as he was only going through the motions - never talking to his friends anymore, only working and achieving nothing at all.More news: Chris Pratt announces engagement to Katherine Schwarzenegger
"Proud of Ella for becoming a PAT dog this year". "Animals can provide a sense of calm, comfort, or safety and divert attention away from a stressful situation and toward one that provides pleasure".