Lauren Goodger was ''mortified'' when she was mistaken for 'TOWIE' co-star Gemma Collins.
The 25-year-old star has struggled with her weight in the past, and was upset when a fan in a nightclub thought she was Gemma - who has previously stated she is happy with her curvy figure - and is now convinced she needs to lose weight.
A source said: ''Lauren was partying at a London nightclub when she overheard someone say, 'Look, There's Gemma from 'TOWIE' '
''She had her back to the group of girls who'd spotted her and to Lauren's horror she realised they were talking about her. Gemma wasn't even at the club that night and Lauren was mortified. Lauren checked her reflection and is now convinced her rear view isn't great.''
Now, Lauren - who previously dated co-star Mark Wright - is constantly seeking reassurance from her pals.
The source added to Reveal magazine: ''Lauren's worried she'll end up as big as Gemma. She's struggling to control her eating and is constantly seeking reassurance from her friends.''
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