11/17/2006 AT 09:10 PM EST
Kimberly Stewart is denying reports that she is suffering from liver disease – but she does tell PEOPLE that her dad Rod Stewart has "big mouth."
That's the clarification offered up by the daughter of the rock legend, after quotes surfaced from the elder Stewart saying that his daughter had "very serious liver illness from drinking too much."
"I love my dad but sometimes he has a big mouth and not just when he's
singing," Stewart, 27, tells PEOPLE exclusively. "I don't have a liver disease. I was exhausted and feeling sick from burning the candle at both ends, and my doctor told me to cut back on drinking and smoking, which I have, and I feel so much better."
Reps for Rod Stewart say the comments, in the new issue of Rolling Stone, were taken out of context. "Kimberly had an inflamed liver and she's perfectly fine now," the rocker said in a statement.