Hi,
I have a jpouch and can say that I don't really have any of those. Since you spoke to your dr, it sounds like it's just an adjustment period as I do remember having issues initially. I will say that the only thing I do get is a bit of leaking sometimes during the day (depending on if I eat stuff to make the output more liquid). It sounds gross or strange, but I tend to just put a bit of toilet paper in the end, just in case there is a touch (ie. otherwise, I'll get a rash). So you could try that at night.
I agree with others about the fatigue. It's only been a short time and so of course your body is tired. Once you're able to eat properly, etc, you should get your energy back.
I don't tend release gas except when I go, and would think the buring and pains should subside.
Good luck to you. It is an adjustment, but nice to get rid of the bag isn't it?
PS - Just read your last post above mine. Let us know what the dr says about the bleeding.