Although it is unknown what is wrong with her, former model Jordan posted brief details on her Facebook page.
She wrote: “Still soo poorly problem getting worse no meds are helping such s*** times :(‘
After being taken into hospital, the glamour girl revealed on Facebook that she was there and on a drip.
She was released from hospital and kept fans updated by posting on Twitter: “Out of hos back again in 48 hours mri scan had morning of needles my worst nightmare, time to concentrate on getting ready for christmas.’
That means that Katie will have to go back into hospital on Christmas Eve.
Her new illness comes after she was rushed into hospital for emergency surgery just four weeks after giving birth to her son Jett.
Before that, Jett, her first son with new husband Kieran Hayler, was born eight weeks early via emergency caesarian and had to go into an incubator as soon as he was born, after Katie caught an infection while pregnant.
At the time of Jett’s birth, Katie said: “Bringing life into the world is supposed to magical. But what I went through was a nightmare.
“The only thing that had got me through the nightmare was the thought of cradling my little boy.”