The 49-year-old actress shared a self-snapped portrait with her 4.9 million Twitter followers Monday -- her first update since January 7. In the grainy pic, Moore appears to be lying on top of a white bedspread. The caption reads: "Testing. . ."
Moore has yet to change her Twitter handle from @mrskutcher, though she hasn't been with Ashton Kutcher, 34, since November 2011. "Changing my Twitter name isn't a top priority right now," she explained last year. "Sorry it bothers so many of you. Should I not tweet until I do? Does it really matter?"
The Margin Call actress has kept a low profile since being rushed to the hospital for convulsing after doing whip-its January 23. The following week, she entered rehab at Cirque Lodge in Sundance, Utah. Moore was reportedly being treated for an eating disorder and addiction issues, though her rep had no comment when contacted by Us Weekly.
The 16-person Lodge didn't come cheap: The first 30 days of treatment cost $47,850. Once she left rehab, Moore and her BFF Eric Buterbaugh flew to Turks and Caicos, where they stayed a private residence at Parrot Cay.