Does Demi Lovato still have some demons in her closet that she's trying to deal with? Over the past 12 months, the young star has been talking positively about her life after rehab where she sought treatment for "physical and emotional issues."

But around 2:00AM on Friday morning (Jan. 6), Lovato opened up on her Twitter page with a rant that had some questioning what the root of the problem might have been.

"Sometimes it seems like God just keeps throwing crap my way and I get SO angry with him," she tweeted. "But there's never a doubt in my mind He's gonna pull me through it all. I know you're there God. But umm... Really dude?"

"He never fails to show me He's by my side though," she continued in a second tweet. "Even in the tough times. #Godstuff."

After a few retweets and replies to some fans, Lovato added: "I'm not very religious but I'm VERY spiritual and I DO believe in God. I'm not perfect or preaching! Just tweeting... :)"

This isn't Lovato's only rant in the recent weeks. Just last month, the 19-year-old star sounded off on her Twitter page after her former employer, Disney, made light of eating disorders on its hit show 'Shake It Up.'

Lovato ripped into the network, tweeting: "What are we promoting here? I find it really funny how a company can lose one of their actress’ from the pressures of an EATING DISORDER and yet still make joke about that very disease….. #nice. EATING DISORDERS ARE NOT SOMETHING TO JOKE ABOUT."

Here's hoping Lovato got a good night's sleep and is starting her weekend off on a good note!