Day after day, Amanda Bynes have been displaying alarming behavior. From her rants on Twitter to posting photos of herself, some people can't help but assume that the former child star has gone completely mental.

Today Amanda Bynes decides to post a scandalous snap of herself via her Twitter account. In another Twitter meltdown, she tweets a picture showing off her massive cleavage. Along with the shirtless photo, she added a description that says, "About to put on makeup! I weigh 135, I've gained weight!! I need to be 100 lbs!"

Amanda's recent disturbing behavior was analyzed by Dr. Carol Lieberman, psychiatrist and author of the book "Bad Girls: Why Men Love Them & How Good Girls Can Learn Their Secrets." Referring to the bizarre video that Amanda posted on April 15, Dr. Lieberman concluded that the starlet appears to be psychotic.

"This video is very suggestive of someone who is psychotic. Amanda seems to be making faces at, and talking to, some unseen person. And, although it's possible that there is actually a person off-camera, it seems more likely that she is having an auditory or visual hallucination," the doctor explained.

"She has been increasingly manifesting symptoms of a serious psychiatric disorder, which may include a combination of alcohol abuse, drug abuse and mental illness such as schizophrenia or manic-depressive illness," the doctor suggested.

Browse through the gallery above to see Amanda Bynes and her weird Twitter pics.

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