Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you with your wee one today.
How long has she been showing signs?
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, stones, socks, toys, plants, chemicals, human meds, etc)?
How much blood did you see? A spoonful, more or less?