Welcome UC Rookie,
There is a definite period of acclimation, and things get so much better with time! I had a lot of gas the first couple of weeks after surgery, too, which is normal. Now, I only have it overnight or when I eat on an empty stomach. One time, I had a lunch meeting at work and rested my right forearm over my stoma to muffle it, just in case it decided to be chatty!
The other thing that took some getting used to was having the weight of a full pouch attached to my stomach. To alleviate that, I make a habit of emptying every time I go to the bathroom to pee, so I don't let it get full and heavy.
I have also figured out which foods cause gas and try to stay away from them, unless I'm going to be home, and I don't care if my pouch fills up like a balloon!
I was sick with Crohn's for 7 years, so being disease free since my surgery in 2006 has been a miracle and a blessing! I'm so healthy now and am very active and work full time, so most of the time, I forget it's there!
Hope that helps, and please feel free to ask any questions you have. We're all here to help!
Cecilia