Lindsay Lohan Assaulted

According to our sources, Lindsay is telling friends she is still in shock over what went down Sunday morning at her hotel room in New York. We're told she is sticking to the story she told cops -- that the man, Christian LaBella, attacked her after she confronted him for taking pictures of her and her friends.

We're told Lindsay feels the guy befriended someone in her group with the express purpose of getting to Lindsay. According to our sources, that friend didn't come back to the hotel ... but LaBella tagged along anyway.

Our sources says Lindsay saw the guy recording her with his phone and when she grabbed it ... she saw he had taken over 50 photos and videos and had been emailing them to friends.