The star sparked rumours that she was returning to her old glamour model persona when she was criticised for allegedly drinking heavily and partying with male models during a trip to Ibiza.
Writing in her OK! column, she said: "Jordan isn't back! I'm Katie Price - Pete was away with the kids and I was in Ibiza to film my show and shoot my calendar and I went out a few times - but so what?
"I didn't have any hangovers, though - I didn't drink that much - I'm just a lightweight!"
The 31-year-old also denied reports that she was enjoying rebound romances in the wake of her split from husband Peter Andre last month.
"Yes I've been seen with Anthony Lowther, and yes I've been seen with my ex Matt Peacock," she said. "There's nothing going on with either of them, it's just speculating like usual.
"What you have to remember is that Pete left me at the end of the day, but I don't want to go down that road."
> Katie Price 'getting back to normal'