Hi Katie,
I also put ground Flax Seed into my oatmeal after I have cooked it. It gives it a hearty, mildly nutty flavor which I love. The first few weeks I was, how do you say, a little "gassier" than usual but this went away quickly and now I am just my "normal" gassy, LOL!!!!
Anyway, it is great to incorporate Flax Seed into your diet and you will be glad you did so.
Deb