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I am sorry to hear you are worried about Patches. My name is Rebecca. I am a veterinarian and will do my best to help.
I see she has been vomiting. Any diarrhea? Is she eating today?
Cats vomit for dozens of reasons: something they ate, infection, parasites, internal disease (liver, kidney, pancreatitis, heart disease, inflammatory bowel disease). Many are not serious, and some are.
If she is eating, that is a good sign. If her gums appear pink in color, that is good news as well.
If she continues to vomit you can try 1/4th of a 10 mg Pepcid AC (famotidine) twice daily.
If she is not eating, I am more worried. She could become dehydrated.
I hope you were able to see what I sent. Can I help with or answer any other questions?