the smell wont' always be that bad, at first you are expelling a lot of bile and nasty stuff like that, after about a month, mine got to smelling more like food than yucky, and the gas will subside after a while too.
Anotehr thing that will help with gas, is to lay on your left side, and gas-x will always be your friend, lol. I take it just about everyday, although i dont' need it as much as time goes on.
And you can complain all you want! we have all complained on here numerous times, and everyone is glad to listen and help out if we can.
The weight of the bag is probably what is making you hurt, if you tuck the bag up on itself and put it in your undies, so that it isn't hanging down, it won't hurt as bad, it took me forver to figure that out, lol.
i am glad you are feeling better, pain wise, and that you are still alive!