Hi, thanks for your email, prefered to reply here. I have done a brief check about CH and think it would be unwise to put her back outside, especially if she is very wobbly. She should be very easy to tame, because cats with CH tend to be very affectionate, which would over rule her feral background. As you probably know, she got CH as the result of her mother having an infection whilst she was still in the womb.
I would put her on wet food. Get some fur ball treatment from your vet to aid pooping. If this doesn't work, put a little lactulose into her food, not much, cats hate the taste. One of my old ladies (a cat!) gets bunged up sometimes and I have to syringe lactulose into her mouth, she hates the taste so much! But fur ball treatment, such as defurrum or katalax would be best first.
I'm assuming you had her aborted? If so, that was probably wise, though unfortunate.
How wobbly is she? Cats with CH usually live normal life spans and adapt to the condition, according to what I've just read.
As to the problem of her being a feral. Just give her time and patience. Don't expect too much too soon. Let her come to you. It sounds as though it won't be too long before she overcomes her fear. In my experience, feral cats won't let you go anywhere near them for months, so if she's allowing you to hold her, you don't have far to go before she is domestic.
I would advise keeping her. If she has toy mice and somewhere warm to sleep, her litter is regularly changed and you see her for at least half and hour to two hours a day, she'll be fine in the spare room for a few months. After that, try to borrow a kittening pen from a cat charity (are you in Britain? If so, try CP), put this in your main room, so that she and your dominant cat can get to know each other slowly. Expect hisses etc initially, until Jasper becomes used to her.
If you intend to rehome her, be VERY careful who she goes to. She will need a special owner as she has CH. You may find difficulty finding someone to take her on. If you can afford her, keep her.
