Since carbamazepine (Mazetol) previously helped, the issue might be related to nerve signaling in your bladder. However, because these symptoms have returned, it is very important to consult your doctor before restarting or adjusting your medication. They will likely want to perform a simple urine test or ultrasound to rule out infections or other underlying causes. Please avoid self-medicating, and try to keep a brief log of your daily fluid intake and bathroom visits to share with your physician at your next visit.