Arquette: I'm not having a nervous breakdown

Just kidding!

During a rambling one-hour interview on the "Howard Stern Show" Wednesday, David Arquette, 39, said he may be losing it, saying "I believe so," when the radio host asked if he was having a nervous breakdown.

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Now the actor, who appeared on the show for the third time since splitting with wife Courteney Cox, 46, in October, says he was just kidding around.

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"It is being reported that I'm having a Nervous Breakdown," he tweeted Thursday. "I assure you am not. This stemmed from a joke I made."

Story: Arquette says he's having a nervous breakdown

As for his other painfully honest admissions ? he admitted he's "been drinking a lot" and said he'd like to father a child with ex Drew Barrymore ? Arquette makes no apologies.

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"I always speak my mind and I really don't care what people that don't know me may say," he wrote. "I'm a good person with a huge heart. I thank those that have been on my side during this rough time."

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