I ate a lot more than usual tonight. i take miralax (polyethylene glycol) and dolcolax but eill i be constipated? or will i be ok?!?!

Laxatives: You are taking laxatives, which is the treatment for constipation. If they work effectively, you shouldn't be constipated. Drink enough fluids.

Should be ok: Just continue your regular constipation regimen but increase your water and exercise for a few days.

Tough to tell: Just because you ate more does not mean you should be more constipated. It depends on what you ate. Also, at 18 years old, you should not be so constipated to take laxatives/stool softeners daily. Talk to your doctor about this if you have not already. Best wishes.