I’m writing a fiction. 
One day, A cute young woman discovered that her had a special function on her bladder. She can generate urine which includes a medicine substance, and the medicine is what all man kinds needed; the medicine for cancer ! She can generate urine which can cure cancer. So she is obliged to contribute that.
She drinks water as much as possible and urinate. Since she urinated much pee everyday, she is good at holding much pee. Generate what she might say while she is holding much urine.