Urination and no diabetes

Patient: Hi I am 23 and for the past t three years I have been urinating frequently I have to leave bed at night twice to visit the restroom even if I don’t drink water and I am thirsty. I have no diabetes because I checked more than once. I feel like I am toy that drinks water and urinates in the same time. Usually if a I drink a cup of water I use the restroom after15 min

Doctor: