Mike 'The Situation' Sorrentino: I'm in rehab

Hours after his representative denied online reports that "Jersey Shore" housemate Mike "The Situation" Sorrentino was in rehab for substance abuse, the reality-show star confirmed he has been dealing with a prescription-drug problem.

"I want to set the record straight. I have voluntarily taken steps to get control of a prescription medication problem I had due to exhaustion," Sorrentino wrote on his official website Wednesday. "I have spent the past several weeks getting treatment for this problem and recuperating from my work and appearance schedule. I appreciate my fans' support and love you guys."

In response to the initial reports, Sorrentino had tweeted, "You can't believe everything you hear about 'the situation' with The Situation, especially when it comes to some of the ridiculous embellishments TMZ has been spreading."

The Hollywood Reporter said Wednesday that fans and others had speculated that Sorrentino was behaving more erratically than usual during the recently concluded fifth season, citing in particular a camping episode in which "he appeared to be extremely paranoid."