Help! Grandma is sick, and I'm out of options. What should I do?

I'm the caregiver for my 91 year old grandmother, and all of today she has been complaining about being constantly cold, a bad stomach ache, and now she is throwing up, nauseated, dizzy, a sore throat, and complaining about her legs feeling weird. As I quote "They don't feel like my legs". She is on her second round of antibiotics for a UTI, but the sore throat and legs just came on after she woke up from her nap. The rest has been going on for a couple days now, with the always cold starting last night. Is there anything I can do to help her? She is refusing to go to the hospital, and I really have no way of getting her there. What should I do?