"It’s a hard three letters to absorb," the 50-year-old actor said when he revealed he is HIV positive on the "Today" show Tuesday.
Charlie said he was diagnosed about four years ago but he does not know how he contracted the virus. However, he is certain that he did not infect anyone.
He admitted to being blackmailed by several people to keep his health status quiet. In one instance, a prostitute took a photo of his medication and threatened to sell it. "They were taking money meant for my children," he said.
Sheen said he has only had unprotected sex with two people since finding out he was HIV positive and they were "completely warned."
He said the symptoms started with "insane migraines and sweating in bed." and he was convinced he had a brain tumor.
Sources told the Daily News on Monday that Sheen had safeguarded his diagnosis for years - but claimed that the powerful drugs he had been taking worked so well, follow-up testing failed to show the virus in his bloodstream.
The star's doctor confirmed this to Lauer. "It is an undetectable level in his blood."
"Charlie does not have AIDS," he added. (He) has contracted the HIV virus he was immediately put on treatment it has suppressed the virus he is absolutely healthy from that vantage."