Thanks for writing to us,
First rule out the cause of your right side lower abdominal pain
.it is advisable to do an ultrasound
abdomen and find out the cause.
as your doctors said , it might be due to UTI,s it is simple to treat. But I wont give you exact diagnosis without probing leading questions from you, as your history wont help me to know more about the condition.
If you are experiencing the problems getting worsening it is advisable to have examination from your nearest GP.