Whitney Houston: Back on Drugs?

She cleaned her act up for quite sometime, but now it is being reported that friends of Whitney Houston are worried that she’s gone back to using drugs.

According to a tabloid report, the “Million Dollar Bill” singer’s recent erratic behavior has sparked cause for concern.

“Everyone is worried about her,” a source said. “Whitney seems to go from being a nervous wreck to being completely out of it in a short period of time — just like she did when she was freebasing and using crack cocaine.”

The source continued, “She is still drinking and with Whitney, alcohol and drugs have always gone hand-in-hand. She’s worked so hard to get back on top. It would be tragic for it to go up in smoke because she can’t stay clean.”

Ms Houston has publicly admitted to battling drugs for years.