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What do you do when everyone's questioning every move you make? Smile, smile, smile!

At least that's what a skinny-looking Dina Lohan did while visiting a friend in Los Angeles Monday ... and wearing a super short blue dress!

The last few days have been even crazier than usual for Lindsay Lohan's mom. First, Dina was Lilo's date to Kim Kardashian's wedding in Montecito, Calif. August 20. Later that week, word got out that the New York native is trying to raise $5 million to produce a movie that would star her oldest son Michael Lohan.

And now, Dina's youngest son Cody has been receiving threatening phone calls. Nassau County police have been surrounding the area near the Lohan's Long Island home, but Dina is still in Los Angeles and not back on the East Coast with her sons.

Do you think Dina should still be in L.A. and not with Cody, even if she's in California for business?