Turing committed suicide to escape government persecution for being gay. That's not the same as a case like Grothendieck or Nash; it can't fairly be called paranoia when someone really is out to get you.
More exactly turing was suffering due chemical castration mandated by the government, I don't want to imagine what such procedure does to one's mental health.
Given that the regimen at that time involved high doses of some of the same hormones used in MtF HRT today, I suspect it'd be not totally unakin to being forced into severe gender dysphoria, with gynecomastia and permanent sterility as just a couple of the side effects.
