According to TMZ, medical officers arrived at the scene after Lindsay called the Liz & Dick production team this morning and complained about feeling unwell.
A private doctor was then called and before the doctor arrived at the premises they asked the hotel to check on the actress.
When a member of hotel staff knocked on her door and she did not rouse, 911 was called by a member of the Liz & Dick production team.
When paramedics arrived on the scene, they reportedly determined that the star was 'ok'.
Apparently Lindsay has been filming for two days in a row with very little sleep and decided to stay at the hotel in order to get some much-needed rest.
She told X17online: 'Lindsay's ok. She worked until 6.15am and wrapped, then went home to sleep. She's working so hard and just wants it to be perfect.'
Lindsay has previously battled problems with drugs and alcohol, but in March was finally taken of probation for a number of offenses stemming back to a 2007 arrest for Driving Under the Influence.
She is now making her comeback with ‘Liz & Dick’ – in which she plays Elizabeth Taylor – and has also been cast in movie The Canyons.On Tuesday Lindsay was spotted filming scenes for Liz & Dick on a balcony at the hotel.
Channeling another one of Elizabeth Taylor's timeless looks, she was wearing an all black dress with stand-out diamond earrings and a matching necklace and bracelet.
The day before she was seen on set modelling a red gown and a curly hairstyle and also a yellow pleated dress and a fur coat.
Filming for the upcoming TV film began this month with the story revolving around Taylor's relationship with her husband Richard Burton - whom she married twice.
The actress's latest drama also comes as she was shaken up following a car crash last week.
Neither of them received serious injuries and Lohan was back on set in no time, looking just as glamorous as she had before the accident.
It was recently reported that Lohan wasn't made to do a blood test following the car crash and therefore the police are unsure if she had been drinking.
According to Radar Online, the Santa Monica Police 'didn't request a blood sample from Lindsay Lohan when she was in the emergency room' after she drove into the back of a truck last Friday.
'Lindsay was given a portable breathaliser test along with several other field sobriety tests and she passed them all,' a source told the website.
'She did everything that was asked of her and cooperated fully. This is why the cops didn't request a blood sample from Lindsay, as they concluded that she wasn't under the influence and didn't need to be given a blood test.'
The source went on to add that Lohan was apparently 'shaken up' about the accident, and was told by the police that her 'seat belt absolutely saved her life.'
Source - dailymail