Lohan's publicist Leslie Sloane Zelnick told MTV that Lohan had been diagnosed with bronchial asthma as a child but has not had an attack in several years.

"It's the first attack since I've known her," Zelnick said. "She's had attacks before, but not that many, and not recently. She's taking it easy now, she's resting comfortably. She's just tired and not feeling too good. It took a lot out of her."

Zelnick told MTV that Lohan is expected to remain in the hospital for a few days, according to their report on Tuesday.