Lucy, 32, opened up about her “severe” eating disorder struggles during a sneak peek for her guest appearance on The Demi Lovato show.

The actress revealed how she dealt with anorexia and “exercise bulimia” throughout her teen years and into her 20’s.

“I want to bring up something that I actually had no idea you had dealt with,” Demi began.

“You had struggled with an eating disorder.”

“Probably from like 15 to midway through Pretty Little Liars I had severe anorexia,” Lucy admitted.

“And exercise bulimia. I would just work out for hours. It wasn’t really about how I physically looked, it was because I had moved across the country.

“I just felt so completely out of control. The easiest thing you can control is the food that goes into your mouth or how much you work out,” she explained.

“I had an eating disorder and I didn’t even know what anorexia was. So it kinda got really bad in my late teens before anyone knew what was happening.

The Fantasy Island star continued: “Because I’m a petite person anyway I just looked sick. I look back at pictures and I’m like ‘oh my god, I just look so sick.’

“My mom was like we’re moving home if you don’t get help.”

Lucy confessed that she still sometimes has “bad days” but she has learned how to “compartmentalize” the negative thoughts.

Read more at the source.