Hello,
Presence of ketones in urine is not normal and can be found in metabolic abnormalities such as diabetes, renal glycosuria, or glycogen
storage disease, dietary
conditions such as starvation, fasting, high protein, or low carbohydrate diets, prolonged vomiting, and anorexia and conditions in which metabolism is increased, such as hyperthyroidism, fever, pregnancy or lactation.
You need to consult a physician and get all these causes ruled out.