I don't know if it is classed at medical, I'd guess more psychological. She used to be slim and then some stuff happened - I know she was treated badly by an ex, I think he cheated on her after a miscarriage or she found out just before the miscarriage, I'm not sure. She Comfort ate and put weight on and now she's in that cycle so when she's happy she loses weight, I think at one point on TOWIE she was around a 14 then she went up to a 26ish I think then down to a 16 then an 18 then a 22 then she's back to a 20 then a 24 etc. She needs therapy.