Taking my nightly miralax (polyethylene glycol) dose and it didn't mix properly in the water. i swallowed clumps of powder. is this okay??

Clumpy Miralax (polyethylene glycol): It doesn't matter if you got some clumps. It will all get thoroughly mixed up in your stomach. Why do you need daily miralax (polyethylene glycol) at age 20? How about trying more natural ways to make bowel movements regular, like getting more fruits/veggies in your diet (apples, pears, prunes, broccoli, cauliflower, cabbage)? Consider eliminating cheese for a few weeks to see if that helps. Avoid fast/processed foods.