One of Charlie Sheen's ex-girlfriends said via Twitter - without mentioned him by name - that she has been tested for HIV and that things are "stressful."

Sheen has not responded to recent tabloid reports that he is HIV positive but is set to "make a revealing personal announcement" on Tuesday's "Today Show."

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Credit: Getty Images

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Credit: Getty Images

Olson said she has gotten regular check-ups since she and her ex-boyfriend, presumably Sheen, parted ways and has not tested positive for anything.

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools