This is totally normal. I had my gallbladder out about two months ago and even I - the diarrhea QUEEN - was constipated for almost two days. The drugs totally messed me up! I even had to have a freakin' catheter placed for two days because the drugs messed with my bladder as well. I felt out of sorts for about a week, then started improving. My abdomen was sore like I'd done too many sit-ups and I felt gassy and icky for a while. I felt like they had inflated a balloon in there!
I think you will very shortly begin to feel better. I hope so - I know exactly the miserable state you're in, and I wouldn't wish it on anyone! Before my surgery, I had biliary colic and was vomiting with intense pain every few days, and that was awful - now I have none of it, so I definitely consider the surgery a success. I really hope you start feeling better soon. Keep us updated and let us know if you have more questions!