The former glamour model was injured after falling off a 25ft wall in Turkey.
Katie told The Sun that walking leaves her in agony and compared the pain to “shocks of lightning shooting up my feet all day”.
She said: ”I will never be the same, I’ve had to accept that, but I’m staying positive.
“The accident has changed my life and it’s only just sunk in if I’m honest.
“I’ve been given two sets of painkillers but I can’t take them because I’m scared of becoming addicted, so I’m just in constant pain.”
Katie said she is now registered disabled and has applied for a blue badge.
“I have got letters from the doctors to certify me for a blue badge, which I’ve sent off for,” she said.
“I have to park near the entrances to shops all the time, otherwise it would cripple me to walk from the back of a car park to a shop and back again.
“I can’t carry anything from the shops either or even walk up the stairs with anything. The heavier items, the more it hurts my feet.”
Blue badges can enable certain concessions to holders, such as parking for up to three hours on single and double yellow lines, dependant on the location and local rules.
According to online government guidance, the badges allow people easier access to shops and services by allowing them to park closer to their destinations.
The 42-year-old previously told how, after falling onto a concrete ramp in July, she underwent eight hours of surgery.
The reality TV star said she can only walk for 20 minutes at a time before the pain becomes unbearable.
Last month, the mother of five said she wants another baby with boyfriend Carl Woods.
Her oldest son, 18-year-old Harvey, is severely disabled and in January she was praised after they appeared in a BBC documentary together.
She also told the paper last month she had decided to move Harvey into a residential college, where he will be taught skills which will help him to lead a more independent life.