Hi. I had mine out 2 years ago following a short illness. I developed septaecemia and my liver started failing. I'd had gallstones for year without knowing.
For years I had felt really tired all the time, I had no energy and severe pain in the middle of my chest. I was overweight at the time and put it down to being really unfit.
Anyway, once I had recovered from my illness I had my gallbladder out. My op took just over 4 hours. I had 143 stones. I was surprised that I didn't rattle.
The best advice I can give is once you've had the operation that you move around as much as possible. I would wait until 24 hours after. I was told not to take to my bed and stay as active as possible. I did this (it was hard) but as a result I healed really quickly. When you stand up, try to stand as tall as possible as if you bend when you stand then it takes longer to heal.
Also have good pain relief. I was able to walk to school after a week and I was driving after two. My dh works away so I had no choice really.
Do be careful when lifting as I was over enthusiastic with the vacuum cleaner after 8 weeks and it felt like I was being pulled inside. It bloody hurt.
The only after effects I have are that certain foods give me an upset stomach, ie too much ice cream, mayonnaise or anything thats too oily/fatty.