Troubled actress has been busy trying to get her career back on track after a rough couple of years.

The 25-year-old actress is currently hard at work on her new Lifetime movie, ‘Liz & Dick’, and the stress may be getting to her.

Us is reporting that Lohan is smoking two packs of cigarettes a day while filming the made-for-tv film.

Related: Lindsay Lohan Wardrobe Malfunction On Set Of Elizabeth Taylor Movie

“Literally every time she finishes a scene she lights up another cigarette,” the source explains. “You can hear the crew saying, ‘That’s cut — get a cigarette for Lindsay.’ ”

“In between takes she would sit on the director’s chair puffing on her cigarettes,” the source tells Us. “Lindsay has been working hard, but without the nicotine she probably could not make it through as she appears stressed at times and they do seem to calm her down.”

‘Liz & Dick’ will follow the love affair between Elizabeth Taylor (Lohan) and Richard Burton (Grant Bowler).

While filming the movie Lohan has crashed her car, was hospitalized for exhaustion and had a wardrobe malfuction.

Lindsay Lohan Smoking Two Packs A Day On Set Of 'Liz & Dick'

Lindsay Lohan Smoking Two Packs A Day On Set Of ‘Liz & Dick’