Princess Leia Medical Testing

My sweet cat Leia is 14 years old. She's been pretty healthy but recently started with problems. We were at the ER vet a week ago for unrestrained vomiting, where she was given supportive care. The injection worked to stop the vomiting, and I got her to eat again finally. 

Eight days later, she's gotten sick again. She needs bloodwork to see what's going on inside, but these emergency vet needs never come at a good time. I know we all have our own problems, but if there is anyone who might be moved to help her, it would be incredibly appreciated. 

She's really the most amazing cat. She's been part of my family since she was 5 months old. I got her from the vet , where she needed a home. I've been privileged to care for her since then, and it breaks my heart now that I just don't have the money for what she needs right now. And I know this isn't anyone's problem but mine. However, for her sake, I have to try. She is truly the spark and heart of our home.