The reality star claimed to have been at her lowest point during the first series of the MTV show, when she was repeatedly called "fat and ugly" by online abusers.
"During series one I had people telling me I should kill myself because I'm fat and ugly," she told Now.
"There were times when I wouldn't come out of my room for a week. I would literally lock the door and refuse to speak to anybody.
"I phoned MTV and said I couldn't physically sit on a train down to London. I'd never been that low in my life."
Hagan recently showed off her new slimline figure by stripping for a recreation of Botticelli's The Birth of Venus.
Geordie Shore continues Tuesdays at 10pm on MTV.