Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you with your wee one today.
What does her vomit look like?
Is she continually licking her anus? Any changes (ie sores, lumps, redness) there or issues passing urine/feces?
Can she keep water down?
Are her gums nice and pink (not white/pale)? Moist or sticky?
If you press on her belly, does she have any tensing, tenderness, discomfort, or pain?
Could she have eaten anything she should not have (ie bones, toys, plants, chemicals, human meds, etc)?