Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you with your wee one today.
Did you mean your westie?
How long has she been drinking more?
Does her urine look watery or dilute? Is she going more often? Large or small volumes?
Any vomiting, weight loss, diarrhoea or appetite loss?
Since she is not herself, do you mean that she is more lethargic?