I pass stole everyday in the morning,but my stool consistency often changes.i have to strain to pass stool although my stool is generally soft sometimes feels theres still stool, but wont come out. i dont have bleeding, pain or weight loss. cause?

May have intermittent constipation which can be due to lack of fiber or dehydration. Drink about 2-3 liters of fluid a day half water half solute like juices, Gatorade, Pedialyte as too much water dilutes sodium. Eat high fiber food like berries, greens- lettuce spinach, https://www.healthline.com/nutrition/22-high-fiber-foods. Note too much legumes can cause constipation-veggies/fruit are best.