Celebrity Health

Demi Lovato's overdose was not a shock to some of her friends, who say there were big warning signs for weeks that she had lost her battle for sobriety.

Friends of Demi tell us ... even before she released her song, "Sober," confessing she had fallen off the wagon, it was apparent to them she had slipped back into her drug use. They say the signs became more alarming as the days passed, and one friend says he knew for weeks she was in the danger zone ... when he saw her this week it was apparent she was in trouble.

Another warning sign ... she had a big falling out with her sober coach earlier in the month, accusing him of betraying her.

It seems Demi was able to compartmentalize her social life, because other friends say they didn't see this coming. One friend says he was at her home less than 2 weeks ago and she seemed great.

TMZ broke the story ... Demi OD'd at her home Tuesday and law enforcement sources say it was an apparent heroin overdose, but a source close to Demi says it was NOT heroin. When they arrived, she was unconscious and they used Narcan to bring her back. Narcan is used to counter overdoses of opioids.

Macklemore offered Demi Lovato some strong words of encouragement because -- as the rapper said at his concert while dedicating a track to her -- he's been there before.

Macklemore was performing at Xfinity Center in Massachusetts Tuesday night when he dedicated "Otherside" to Demi following news she'd been hospitalized for an overdose. The 2009 track touches on drug addiction and what it's like to fall into a seemingly hopeless downward spiral.

Macklemore -- who went to rehab at 25 -- called addiction a disease "that ties us addicts together." He called Demi his "sister in recovery" and added he knows what it's like to slip. The Seattle rapper not only dedicated the track to Demi, but to anyone else struggling with addiction.

Demi Lovato refused to tell paramedics what drug caused her to overdose, and law enforcement sources say no drugs were seized at her home.

Law enforcement sources say Lovato was not cooperative when EMTs worked on her at her home Tuesday morning. Those sources believed it was a heroin OD based on what they observed at her home, but a source close to Lovato tells us it was not heroin, though the source refused to divulge what caused the OD.

As we first reported, Demi was unconscious when paramedics arrived and she was brought back to consciousness with Narcan, which is used to counter the effects of opioids.

Our law enforcement sources say there is NO criminal investigation, because they did not seize any drugs and can't determine if Demi was in possession of an illegal substance.

Demi Lovato did not OD on heroin ... so says a source connected to the singer.

TMZ broke the story ... law enforcement sources involved in the case told us it was an apparent heroin overdose, but the source close to Demi says no.

The source would not reveal what drug caused her to OD, but as we reported she was given Narcan, which is used to counter the effects of opioids.

Demi Lovato was scheduled to appear on Tuesday night's episode of "Beat Shazam," but FOX has replaced it following her apparent heroin overdose ... TMZ has learned.

FOX says, "In light of recent reports, we have decided to replace the episode of BEAT SHAZAM with another all-new episode. Our thoughts go out to Demi and her family."

We're told Demi's guest appearance -- with host Jamie Foxx -- was taped back in December. Demi promoted the episode to her 56 million followers on Twitter just a few hours before she was rushed to the hospital.

Additionally, Demi's Thursday night concert in Atlantic City has been canceled.

5:31 PM PT -- Demi's rep tells TMZ, "Demi is awake and with her family who want to express thanks to everytone for the love, prayers and support. Some of the information being reported is incorrect and they respectfully ask for privacy ... "

3:13 PM PT -- Demi's aunt, Kerissa Dunn, posted on social media that Demi is "awake and responsive."

1:48 PM PT -- Paramedics found Demi unconscious when they arrived at her home.

1:28 PM PT -- Law enforcement sources tell us Demi was treated with Narcan -- an emergency treatment for narcotic overdoses -- at her home. We've confirmed the OD occurred at her house in the Hollywood Hills.

Demi was out Monday night celebrating a friend's birthday in West Hollywood, and we're told she posted photos on her private Instagram of herself and others in the group. She seemed happy in the pics.

Demi Lovato was rushed to an L.A. hospital after suffering what appears to be a heroin overdose, law enforcement tells TMZ.

Our sources say Demi was transported by ambulance from a home in the Hollywood Hills just before noon Tuesday, and is currently being treated. We do not know her condition.

Demi has fought substance abuse for years ... at one point she lived in a sober living home after getting released from a treatment center. She had been 6 years sober from alcohol, cocaine and Oxycontin.

Last month she released a song called "Sober" where she revealed she had fallen off the wagon.

Demi just performed on Sunday at the California Mid-State Fair in Paso Robles with Iggy Azalea.

She was scheduled to go on the road this week for an upcoming show in Atlantic City, but our sources say she's been struggling.

The NY Mets still suck ... and Tim Tebow can't even save them now -- 'cause the ex-NFLer broke his hand this weekend and is likely DONE FOR THE SEASON!!

ESPN reports the Mets minor leaguer broke the hamate bone in his non-throwing right hand while taking some hacks over the weekend and will have surgery on Tuesday to fix it.

It's too bad ... Tim was raking for the Binghamton Rumble Ponies this year -- even making the Eastern League All-Star Game earlier this month.

Kanye West got an assist from his wife Sunday after he was feeling like crap ... so much so he beelined it for the ER.

Kim was right by Kanye's side as they showed up at West Hills Hospital in the San Fernando Valley. We're told Kanye had the flu and it got worse and worse, so he needed some Rx to make him feel better.

They were only there a short time ... and returned home where Kanye could rest.

Kanye's recently been tweeting about his sinus issues, but we're told it's unclear if they're related. He's been traveling nonstop lately.

Ryan Lochte has found himself in hot water again ... this time, the Olympian has been busted for violating the U.S. Anti-Doping Agency's rules ... and he basically snitched on himself.

Lochte -- who was part of the Team USA swim team's infamous gas station incident at the 2016 Games in Rio -- wasn't popped for using a banned drug ... but for receiving an IV treatment illegally.

But, here's the crazy part -- Lochte reportedly led the USADA right to the investigation by posting a pic receiving the IV treatment alongside his wife on Instagram back in May. He even included the caption "Athletic recovery with some #ivdrip." The post was later deleted.

Hall of Fame jockey Victor Espinoza was sent to the hospital this weekend after a horse he was riding died on the track ... and the scene looked brutal.

Victor was hospitalized with multiple injuries Sunday in Del Mar, California after his horse, Bobby Abu Dhabi, went into cardiac arrest while training ahead of multiple scheduled races. The horse's owner, Brian Trump, confirmed the horse had died.

Based on video of the immediate aftermath of the fall -- obtained by TMZ Sports -- it appears Victor was lying motionless for a while before getting help.

As for his status now, he's said to be experiencing shoulder soreness and numbness -- although, he was reportedly conscious and moving. Safe to say, he's out of Sunday's competition.

Bobby Abu Dhabi had a great run, usually with Victor on his back. He recently took third at Belmont, and placed high (including a couple first place wins) in a number of other races as well.

Trippie Redd put on his good Samaritan hat this weekend when a fan passed out at his concert, which he abruptly stopped to help the girl out.

The Ohio rapper was performing in Minneapolis Saturday night when a female in the crowd collapsed. Eyewitnesses tell us Trippie noticed the commotion and quickly cut the music to figure out what had happened ... and soon started demanding someone help her.

It almost sounds like he's chastising concert-goers for standing around -- although, it's unclear from the video who is (or isn't) springing into action on the ground level.

George Clooney's looking as good as new on set in Italy, and it's nothing short of a miracle ... considering his head-on scooter collision from less than 2 weeks ago.

George is filming "Catch-22" -- he's directing and acting in the miniseries -- and Friday he was moving quickly on set ... so quickly, it didn't even seem like there was a limp in his step from the accident. He was also lifting props without a problem.

TMZ broke the story ... George slammed into a car going 60 mph in Sardinia. He went flying, nearly 20 ft into the air, before slamming down to the ground. Still, he walked away from the accident with bruises and zero broken bones.

Less than 2 months after taking a softball to the FACE -- and undergoing surgery -- Clay Matthews is back in front of the camera ... looking as beautiful as ever!

Remember, the NFL star caught a comebacker to the grill while playing in a charity game on June 2. He ran off the field while dripping blood and had surgery right after the incident.

But on Thursday, the 32-year-old Green Bay Packers linebacker surfaced in California to shoot a commercial for Walmart without any noticeable scarring.

Props to the surgeon ... like Michelangelo with a scalpel!

As for the softball injury, Clay was pitching to offensive lineman Lucas Patrick -- who connected a little TOO well.

After the incident, Clay tweeted ... "Thank you for all the concern and well-wishes. I busted my nose pretty good and will have surgery once the swelling subsides. Thankful as it could have been much more serious."

Being onstage with Chris Brown was too much for one young kid who went down like a ton of bricks during the singer's performance.

Chris performed at the BB&T Pavilion in Camden, NJ Wednesday night. He had a kid come up onstage with him and was in the middle of his track, "Loyal," when the kid all of a sudden fainted. Thankfully, the kid wasn't too big for CB to scoop him up and hand him back to someone in the crowd ... hopefully a responsible parent or guardian.

It was a strange moment, for sure. Chris posted the video and said he was "scared for a second."

Khloe Kardashian's secret to dropping tons of lbs since giving birth includes resistance bands, BOSU balls, a healthy diet and ... TRUE THOMPSON!!!

We spoke to Khloe's trainer, Don Brooks -- aka Don-A-Matrix -- who tells TMZ ... Khloe's success to sweating away 33 pounds has everything to do with True's mere presence near the end of her workouts when she needs an extra boost. Seriously.

Can't knock the scheme when it's obviously working wonders on Khloe. Sure, Don's innovative workouts coupled with two-a-days have done their magic ... but it's crystal clear Khloe draws tons of inspiration from her cute, 3-month-old daughter.

Michelle Williams of Destiny's Child has checked herself into a mental health facility to seek help for her struggle with depression ... TMZ has learned.

Sources tell us Williams is getting treated in a facility just outside of Los Angeles and has been there for the past several days. Michelle has been open with her struggles in the past ... revealing her battle with depression in an interview last year.

In a statement Tuesday, Michelle says, "For years I have dedicated myself to increasing awareness of mental health and empowering people to recognize when it's time to seek help, support and guidance from those that love and care for your wellbeing."

She continues, "Today I proudly, happily and healthily stand here as someone who will continue to always lead by example as I tirelessly advocate for the betterment of those in need."

Williams famously reunited with Beyonce and Kelly Rowland at Coachella in April ... the first time the group had performed together in several years.