Robert F. Kennedy Jr. Allegedly Exchanged Sex Messages With Political Reporter

Sean “Diddy” Combs may also be doing just fine for now behind bars, but concern for his well-being is warranted… a celebrity trainer in prison tells TMZ.

John Fullera consultant identified by your high-profile buyers — he’s ready Martha Stewart to keep it in the can — he tells TMZ … the rap mogul isn’t suicidal in his early days in prison, but the concern that Diddy’s psychological health could worsen over time is legitimate … especially if the trial ends up not going in his favor.

As Fuller said… Diddy is probably getting used to getting his way, given his A-list status… however, those days are over, at least for now — and that’s going to be hard for him to process.

Fuller added… “That’s your 9/11 model.”

Fuller says a sense of “total hopelessness” is entirely feasible given the severity of Diddy’s situation… the Unhealthy Boys Data founder has was charged with sex trafficking, extortion and transportation to engage in prostitution, and he is being held without bail.

His case has been compared to other high-profile sex crime cases, such as R. Kelly‘sand Jeffrey Epstein‘s.

But Fuller’s famous Diddy may also be getting an advantage behind bars… as John says, celebrities are used to being completely occupied — phones ringing all the time, conferences, public appearances — and so prison could allow Diddy some peace.

Diddy is being at the moment held at MDC Brooklyn — a federal detention center in New York — after losing his bail at an appeals hearing.

As TMZ previously reported… for Diddy’s safety, the rapper was held in a Private Housing Unit away from the general public. He could certainly be a target in prison, given his superstar stature and the nature of the allegations against him.

Your day to day is now significantly regimented …receiving instructions on when to get up, eat, sleep and bathe.

We spoke to Diddy’s lawyer Marco Agnifilo outside the court, where he expressed his concerns about the poor conditions at the facility… revealing that he is trying to have his client transferred to a special prison.

Overall, it looks like Diddy is in for a rude awakening behind bars.