Change in stool color symptoms and conditions

Hi, njcukett posted 2 days ago asking if anyone is still having abdominal pain after being off singuliar awhile.My 7 yr.old (on singuliar at least 3 yrs.) is still having pain.She also had bladder issues for the past 2 yrs.(Frequent dripping and urgency to void).This went unexplained by doctors.Over the past 6 weeks since she stopped taking singuliar,I have noticed a complete change in her stools.While on singuliar they had become grayish in color.She would have 2-3 of these movements a day.The color of her stools are now normal,but the lower abdominal pain is still present.So I am wondering if the pain is coming from the bladder, not the stomach.I am going in(without my daughter) to discuss this with her pediatrician next week.Singuliar also made her very anxious,do not want to add to that,by discussing this in front of her.For the people having abdominal pain,did the stools change while on singuliar compared to when off?Just curious.