well she has worms and is very sick...you need to take her to the vet so she can get proper medication..i know vets are expensive ..she needs to eat and drink...try putting milk in her food to soften it...and you may need to have her drink deluted pedialite to keep her from dehidrating try putting it in a sarenge and hand giving it to her...you may need to do that with food also...
this kitty really needs to see a Vet and get a dewormer asap...not the kind you get in grocery stores...if possible take one of the worms with you for the Vet to view so he can prescribe the right medication for whatever type of worm it is....your kitty will waste away and be very ill if you don't get this taken care of...