Hello and welcome, I am Dr. B and would like to help you today.
Based on her signs, I am concerned about your lass.
First if she isn't drinking to match these losses, dehydration is a real risk. So we need to push fluids here. If she won't be tempted by ain water you can offer or drench her with electrolytes. Otherwise we will want her vet once as soon as possible. They can test the urine and the bloods to determine of we have an organ issue ( ie liver, kidney, heart ), toxicity, metabolic issue ( ketosis, calcium imbalance, etc) or systemic infectious process. Depending in these finding, fluids can be given and symptomatic care to nip this in the bud and help get this under control before she risks dehydration.