Brittany Murphy was very ill in the hours before she went into cardiac arrest and died, reports TMZ.
The Web site says Brittany was taking prescription medication for flu-like symptoms that she had been experiencing for several days.
Sources tell TMZ that she began vomiting early Sunday morning and told family members she was feeling very ill.
Sources say various prescriptions were found in her home. They were written for Brittany, her husband Simon Monjack, and Brittany's mom Sharon. One source says, "There were a lot ... a lot of prescriptions in the house."
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Law enforcement sources tell TMZ that Brittany collapsed in the bathroom and somehow and ended up in the shower. The Web site claims there was a significant amount of vomit in the immediate area.
TMZ was also told that authorities did not find illegal drugs in the house. An autopsy will be performed Monday or Tuesday.
Brittany's mom told paramedics her daughter suffered from diabetes, but sources tell TMZ it's unlikely that her condition caused her death.