Charlie Sheen's ex-girlfriend Bree Olson has taken aim at the actor for risking her health during their relationship.

The former porn star was stunned by rumors suggesting her former lover was HIV-positive, and on Tuesday morning (17Nov15), Sheen confirmed the news by revealing he learned of his diagnosis four years ago - around the time he was dating Olson.

Angry Olson appeared on news show Inside Edition hours later, and attacked her ex for not telling her about his health crisis.

"He could have killed me," she raged. "He cared nothing for my life.

"He says he found out when him and I were together. We were having sex every single night."

That comment calls into question Sheen's remarks to Today show host Matt Lauer early on Tuesday, when the actor insisted he had disclosed his HIV status to all his partners before becoming intimate.

Olson, real name Rachel Oberlin, adds, "He used this word, 'I’m clean. I’m clean'... I believed him."

"He is a monster, and he put my life in jeopardy along with hundreds - or potentially thousands - of other women’s lives."

On Monday (16Nov15) Olson tweeted she was getting an HIV test, writing, "Recorded myself for half an hour being tested for HIV and getting the results. This is so stressful."

She insists she hasn't contracted HIV and tested negative.

Sheen's ex-wives Denise Richards and Brooke Mueller have also confirmed they and their children with the actor are all HIV-negative.

Meanwhile, the Wall Street star's one-time 'goddess' girlfriend Natalie Kenly has painted a different picture of her ex than Olson, insisting Sheen is "not a monster" and adding "He has regard for human beings and cares about people. I do not see him knowingly putting women at risk. That's not who he is."

Kenly and Olson lived with Sheen at the same time.

Olson repeated her comments on shock jock Howard Stern's radio show on Tuesday, prompting Sheen's representative to turn on her.

The actor's manager Mark Burg tells People magazine his client had no idea he was HIV-positive when he was sleeping with the ex-pon star.

"The truth is she wasn't in Charlie's life when he was HIV-positive and so there was no reason to tell her anything," Burg explains."