The behavior of Whitney Houston’s daughter Bobbi Kristina has sparked new concerns that she’s abusing drugs!

Sources say family and friends became alarmed after the 21-year-old allegedly posted an old picture of herself smoking a bong on social media.

“This picture may be inappropriate but I want to make a connection with you all,” Bobbi Kristina supposedly captioned the photo. “Don’t worry this picture isn’t recent just hear me out.”

A Houston family insider said: “Krissi can’t resist attracting the wrong kind of attention. She’s a reminder of what happened to her mom, and has the family walking on eggshells.”

Whitney was just 48 when she was found dead in 2012 – the same year The ENQUIRER published photos of her daughter smoking pot.

A day after the picture hit her Instagram account on July 14, Bobbi Kristina denied being responsible. “I’ve never posted any photo of me doing anything!” she wrote on Twitter.

“This is someone trying to tarnish and make a horrible name for MYSELf.

"People are insane.”