Is Frequent Urination Normal While On Adderall?

URGENT Hi am a 20 year old female about 15 pounds i am perscribed adderall and i am suppose to take it twice a day every six hours. i took one and a half around 5 , then i drank a cup of coffee around 8:30 , i feel slightly dizzy i drank two 20 oz cups of water within 15 minutes because i thought i was dehydrated. now i cannot stop peeing i have peed every five minutes for the past hour. i took my heart rate it is 66 beats per minute estimated. i just want to make sure i am alright because i do not feel well and i have not had to pee this frequently. right now i am eating crackers and a granola bar i am afraid i might have water intoxication. please let me know.