Whitney Houston’s long-awaited comeback kind of fizzled out this year even though her album went platinum. Now friends are telling the National Enquirer that Whitney is back on crack. That would be sad considering all the work she did to stay clean.

“Everyone is worried about her,” revealed a source. “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.“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.”Now, under pressure to continue her comeback, Whitney appears tense and overanxious, said the source, adding: “You can’t help worrying that she’s slipped back into some of her bad habits.” Read More…