According to your sign in symptom your baby is suffering from some urinary tract infection.
Other sign and symptom like constipation headache and belly pain and itching and bleeding indicate that your baby is not following good life style so please give advice to your baby to follow good life style like take sufficient amount of water and do maintain personal hygiene and don't do urine on the dirty place.
Next Steps
as you know that best treatment depend on correct diagnosis and correct diagnosis depend on a complete history of the patient so please take consultation with the doctor and give complete history of your daughter then treatment will be start.
Health Tips
please keep positivity to fight any disease and any problem of your life.