Doctors don't usually give press conferences about their patient's confidential health information, in my experience!
Obviously not, he was sent to jail!
No, but in the cases of high profile patients we are typically made aware if they have been consulted or are treating a patient.
Again, whilst I do believe Foz has real issues, the only people I have heard mentioning "mental health " issues are his manager, his coach, his team mates and sports commentators. Foz, to our knowledge is under no Doctors care.