The former glamour model admitted that being wealthy doesn't make it any easier to deal with the 10-year-old's conditions.
Harvey suffers from septo-optic dysplasia - which causes blindness and growth hormone deficiency - and Prader-Willi syndrome, a genetic disorder that means he is likely to eat excessively and is prone to obesity and diabetes. He also has ADHD and autism.
Price is fighting to set up a free school with other parents after discovering that Harvey's school is to close. However, their first application to the Department for Education was turned down over the summer.
"You've got to fight for everything you want. No-one will give anything to you unless you fight for it. We had to fight for a statement [of educational needs]. We had to go to a tribunal because I didn't want to put him in a s**t school," she told The Guardian.
"Anyone - able child or not - you want to start them off the best you can in life. Just because you've got disabilities, that's no excuse to think, 'Oh well, I'll just put them to the side' because you think they can't do anything."
She added: "I don't think if you've got money it makes it easier. All the money in the world isn't going to buy him a pair of eyes. All the money in the world isn't going to change his autism."
Price also revealed that she has had a set of cards printed out which explain Harvey's condition. She hands them out to people who stare at him when they're out in public.
It reads: "You're obviously looking because you're interested. This is his condition... Look up what's wrong with him and if you want to donate to a charity that supports children like this, then do it."