I can appreciate your worry about seeing a vet they can be expensive. Where I live there is a vets surgery run by a charity and all consultations are free and any treatments are non profit. They also can do consultations over phone or on line which would alleviate your worries about kitty. Do you live in the UK ? Have you checked vets in your area the information would be useful anyway if you need them in the future. Hope kitty is improving. All the best xx