BB6 Sam
Was mentally ill, Her constant laughing at everything, There's a scene in the garden were Maxwell is defending Sam against Lesley and he said she had to take that thing off her leg in the Hospital task for medical conditions and then Lesley says "Yea I know she's ****ing cooku cooku." Sam also suffered from depression after the show.
BB7 Shabaz
Housemates that went Mental in the house:
BB5 Ahmed
BB8 Chanelle
I'm sure there's a few more I've forgotten about?