LINDSAY LOHAN — I Went to Jail … Why Hasn’t Amanda Bynes?

Lindsay Lohan wants to know why Amanda Bynes isn’t behind bars — tweeting, “Why did I get put in jail and a nickelodeon star has had NO punishment(s) so far?”

Pretty amazing … coming from a woman who has been charged with multiple crimes, violated her probation countless times — even told the judge f you with her fingernails — and still skated almost all of the time.

There are two ways you can interpret the tweet — either Lindsay thinks her own punishment was UNFAIR  … and she should never had gone to jail in the first place.

OR … she thinks her punishment WAS FAIR … and Amanda Bynes should be locked up, too.

For the record, Lindsay went to jail after she violated her probation stemming from a DUI conviction.

Bynes, on the other hand, has been arrested for DUI … but hasn’t been convicted.

The convicted necklace thief posted a second tweet … saying, “These are the moments that I appreciate my life experiences, living without regrets and Disney for supporting me as an actress-night all*”