Former child star Amanda Bynes has been hitting celebrity news headlines again in recent days. Having been caught up in a DUI charge in the last week, she was also spotted behaving strangely in a restaurant in the terminal of Los Angeles’ LAX airport.

Amanda Bynes
Amanda Bynes was observed behaving strangely in a restaurant in LAX airport

An eyewitness told E! Online: "Amanda was at the table by herself with all her makeup spread out across the table. She was talking to herself and putting on a ton of makeup. She would apply some, look in her compact and make weird pouty faces and they say to herself, 'Ok, that looks fine.'"

The source continued that Bynes was very sloppy while eating her food, and while the actress didn’t appear to be drunk or on drugs, her body language betrayed some deeper unease.

More: Amanda Bynes in trouble again over suspected DUI.

Bynes spent a large amount of her childhood in the entertainment industry, starring in several stage plays before rising to prominence in the late ‘90s, starring in the Nickolodeon shows ‘All That’ and ‘The Amanda Show’. During the last decade, she starred in several movie including What A Girl Wants (2003), She’s The Man (2006), Hairspray (2007) and Easy A (2010).

Sadly, her erratic behaviour seems to fall into a tragic pattern of difficulties that so frequently beset child actors. After a number of quiet months spent working on her mental health and drug issues as well aspiring to be a fashion designer, under the conservatorship of her parents that ended on September 10th, it appears that Bynes has lapsed into old patterns of behaviour.

Her past misdemeanours include allegedly throwing a bong out of the window of her apartment in New York, after which she was charged with possession of marijuana, as well as a previous DUI charge and a host of bizarre Twitter outbursts.