Gender identity refers to the gender that each individual recognizes themselves as.

He publicly disclosed that he has a gender identity disorder.

His father died of Creutzfeldt-Jakob disease.

He is an expert in psychiatry.

His father was diagnosed with schizophrenia in the past.

He was diagnosed with glycogenosis.

It seems that he is suffering from chuunibyou.

He often behaves strangely because of his 'chuunibyou' (middle-school 2nd year syndrome).

He is showing behavior characterized by 'chuunibyou'.

I am going to see a podiatrist who will examine my foot problem.