Lindsay Lohan is rapidly loosing weight; even her representative is confirming it.

Lindsay is aware that she's lost some weight due to stress, the actress' rep told the NY Post's Page Six on Tuesday.

However, the rep continues to say that there's no reason to worry about the Mean Girls star. We recently did a photo shoot and she ate two full meals.

Click here for more Lindsay Lohan weight-scare photos.

Meanwhile, Lindsay and gal pal Samantha Ronson's relationship appears to be strained of late - which explains the stress, OK Magazine reported.