According to TMZ –
Prince was treated for drug overdose six days before his death –
Prince had to make an emergency landing in Moline Illinois –
He was rushed to a Hospital and doctors gave him a safe shot typically counteract the effects opiate –
Doctors advised him to stay 24 hours his people demanded a private room and it was impossible to get a private room so they left.
TMZ was told when Prince left he was not doing well.
Source TMZ