Thank you for your query at DoctorSpring.com
You seem to be having overactive bladder and you are on right treatment. I shall be interested to know your ultrasound report.
A lot of patients may not respond to tolterodine and if no improvement has happened after 1 week then patient should consider change of medication(some other anticholinergic). You should see your doctor and consider change of medication.
Feel free to discuss further,