im 19 had oral surgery about a week ago and had to take pain meds/antibiotics since yesterday i havent been able to poop. ive tried everything, milk of magnesia, teas, oral solutions, even a water flush but nothing works. i think the problem is that when i sit in the toilet the poop is too hard and big for my anus, i can feel it right there its just impossible to come out, what can i do?????