julia van herck , 42 , from fulham , west london , underwent surgery after tying the knot with stefan in 1993 .
she wore a size 26 to size 28 and would stash tubs of ice-cream and family-sized pizzas because she was scared that her husband might leave her .
mum-of-three julia van herck gained 12 stone after binge eating following post-natal depression and amid fears that her husband would leave her .