Jennette McCurdy said that she felt 'sick to my stomach' while trying on a bikini at an 'iCarly' wardrobe fitting

• Jennette McCurdy recalled trying on a bikini at a wardrobe fitting for "iCarly" and feeling embarrassed.

• In her memoir, McCurdy said that she hated "so much of my body being exposed."

• The actress said she was "terrified of being looked at like a sexual being."

Jennette McCurdy said that she felt uncomfortable and embarrassed when she was asked to try on a bikini at a wardrobe fitting for "iCarly" as a teenager.

McCurdy wrote about her experience starring as Sam Puckett in Nickelodeon's "iCarly" and its spin-off series "Sam & Cat," both of which were created by TV producer Dan Schneider, in her new memoir released on Tuesday titled "I'm Glad My Mom Died." 

In her book, the actor said that her mom Debra McCurdy taught her to become anorexic at 11 years old and encouraged it so that she could "delay adulthood."

By the time she was cast as Sam in the sitcom, which ran for six seasons between 2007 and 2012, McCurdy hit puberty and her body began changing.

"I'm standing behind the curtain in the dressing room of the soundstage that we shoot the show on," McCurdy recalled in her memoir. "My arms are folded across my body. My foot is tapping anxiously. I don't want to come out from behind the curtain."

The actress said that when the wardrobe department asked her to emerge so they could take one photo of her in the bikini, she was self-conscious.

"I step out," she wrote."I feel my cheeks blush with embarrassment. I hate this feeling, the feeling of so much of my body being exposed. It feels sexual to me. I'm ashamed."

McCurdy added: "I fold my arms across my body to try and cover it up more. I hunch my shoulders over like a little cave to protect me. I don't want to look sexual. I want to look like a child."