"He said Ms Amati, who was born a man, began taking hormones in 2012 to transition to a woman but the drugs had a significant effect on her state of mind.
He said Ms Amati's mental state deteriorated in 2015, when she had surgery in Thailand to complete her transition to a woman, and she began to experience visions, hallucinations and suicidal and homicidal ideation".
I agree with AngryAttackKittens I think what they experienced is more likely to be an episode of psychosis, but maybe caused by the transition itself.
Some part of the mind may have rebelled against completing the dissociative strategy of becoming a woman (which can be an unconscious strategy to supress overwhleing feelings such as fear, powerlessness or underlying hostile/narcisstic rage by denying/ othering those feelings), or simply that the transition to a new identity failed to cure/supress the underlying rage.
It is why playing along with delusions, demedicalising and not looking for root causes is really very dangerous.
I think certain types of MH disorder are under-diagnosed in men in part because the over-riding misogynistic culture 'hides' more serious pathologies, intentionally and unintentionally, as well as the general lack of funding for diagnosing and treating MH.