
Fresh red and/or watery blood is often a sign of tiny blood vessels bursting due to inflammation and excessive straining. If the blood is very dark, tar like, it is a sign of digested blood which is generally much more serious.
In either event a vet check is advisable but since she's been off colour, and had D & V the chances are she's got a tummy bug which is making her feel miserable and may need sorted with ABs. At least you'll have her in the right hands shortly.
best wishes, please update cause when you can
Teri :)