Lindsay Lohan Calming Her Nerves By PARTYING!!!!

Lindsay Lohan is facing felony grand theft charges and is on probation for a prior DUI arrest, but why let that stand in the way off a good ass time?!

She has 'til Friday to accept a plea deal and a (relatively) short jail sentence, otherwise she'll be bound for an April trial. It's a lot for her to digest.

That's why she channeled her inner Rebecca Black over the past week, hitting seven hotspots in a four-day span and just partyin', partyin', yeah!

On Thursday at Riff Raff, an onlooker says LiLo was "with a girlfriend, clutching onto her signature can of Red Bull. She was definitely in a partying mood."

Also Thursday, LiLo hit up SL and 1Oak where a clubgoer says Lohan wasn't drinking, but "was in a great mood having a good time with friends, dancing."

Adds the clubgoer: "She was under a microscope because people were waiting to see if she was going to drink, but she didn't." Yeah! You show 'em girl!

An insider at one of Lohan's other stops says the actress was back to her old ways, however, and that it's only a matter of time before trouble follows.

"Saturday night at Beauty & Essex, Lindsay was with her brother and sister," the source says. "She was ordering and drinking cocktails, texting nonstop."

She was also "taking pictures and acting a little crazy."

Drinking or not (Lindsay says she doesn't drink, period, but no one can really believe what she says), can she get in legal trouble for her nightlife antics?

It's a gray area for sure. A prosecutor could very well collect evidence that Lohan's been frequenting these places as grounds for a probation violation.

On the flip side, the definition of a place where alcohol is the chief item of sale is sometimes murky, especially if the establishment is also a restaurant.

As for how Lohan's recent habits could affect her recovery, you don't have to be an expert to see how the star's current lifestyle could get problematic.

Drinking, partying, being a klepto. Jail's a callin'.

[Photo: Fame Pictures]