I Lately Have Been Trouble Holding In My Pee .

I lately have been trouble holding in my pee . When I feel the need to use the restroom the urge comes quickly out of no where and I am unable to hold it in. The stream was very week and a little would come out once or twice out of the two weeks this has been going on. No pain or anything . Noticed I've also been gaining weight in my stomach area which is unusual because my entire life I gain in my leg and hips rather than a rounded stomach . I've gotten my period for this month in the begin of January. Then one night I absolutely couldn't hold it in was woke out of my sleep and it was either the floor or an empty cup near me so I used the cup. The next morning I wake up and there's a very thick white lining at the bottom of the cup. Best way to describe is like sugar at the bottom of a cup before you stir it into your beverage . What is this most likely ??