A 20-year old college student has been experiencing headache…

A 20-year old college student has been experiencing headaches and blurred vision for the past two weeks. He has attributed these symptoms to studying for A&P. He has also noticed that he has to get up at night to urinate. When his blood pressure is taken it is found to be 190/100. How would you explain the student’s urinary frequency at night? (+) What hormone would be produced to cause the frequent urination? (+)