no need to worry
it seem like you are having an after effect of your Earlier UTI.
i advise you to Have Plenty of Water daily and do not hold urine when you have an urge to urinate and should void urine and avoid drinking water just before going to bed in night.
If symptoms persist or its better to take one short course of antibiotics and following medications
1. Tab Norfloxacin
400 1-0-1 for 5days
2. Syp. Citralka 2 tsp in 1 Glass of water at 8 pm in night daily for 1 week