Her doctors told her she had weeks to live. She was put on a feeding tube; eventually she got used to the daily diet and began her long road to recovery.
Fast forward to today, when the 24-year-old runs a body positive Instagram account, Body Positive Panda, with over half a million like-minded followers.
A self-proclaimed "body positive feminist education warrior", Crabbe's aim is to let people know that it is possible to change the way you think about your body.
“I’m a recovered anorexic, recovered self-loather, trying my best to shatter the ‘not good enough’ mentality we’ve all been taught about our bodies,” she writes on her site.
“I’m also a big fan of belly roll love, exposing diet industry lies, and wearing pastels.”
Click through to see some of her inspiring photos and captions — maybe you'll end up clicking the follow button!