It was not revealed what she is suffering from.
Jacobs is accused of killing and burying her aunt and cousin in their own backyard.
A former taxi boss has testified that she had asked him how much it would cost to have a
murder committed.
Levonna from Eerste River is on trial for the murders of her aunt Virna Jacobs, 47, and her cousin Rowena Jacobs, 26.
Prosecutors are set to prove Jacobs killed Virna and Rowena so she could take ownership of the home of her uncle, Donovan Jacobs, in Seringa Avenue, Delft-South.
Donovan was murdered in 2015 during an argument over a burger.