I havent pooped in three days what can i do. i drink alot of water everyday lik 80_100 oz of water a day (i wt 115lbs , 5'1)?

Prune juice: Take MIRALAX--twice a day for 1-2 days and stay on once a day until you are regular.eat fiber--oatmeal,fruits,vegies--activia.

Try adding fiber: A diet including beans, green leafy vegetables, fruits daily on a routine basis with each meal is very helpful. Also grains such as breakfast oatmeal and even nuts sparingly. I would keep the intake of water to 2-3 liters per day which you are doing (33 oz= 1 liter). If no bm in the next 2-3 days even after increasing dietary fiber please call your doc as they may want to see you. :)