I think that you would really know that you were bloated (in you mid and lower stomach area), if you really were. My stomach is fat anyway, and has been for at least 10 years. I am just too fat and cannot do stomach exercises because of stomach (inside) illnesses. But, I am bloated. You just feel like you are so big and that you should need to urinate and that you are full and that you either have a growth or a baby inside!!! :> At least that is what I feel like. My stomach area is sort of tight and seems like it could be thumped like a watermelon!!! :> Really!
My stomach muscle are relaxed, I do not hold them in ever - unless I am trying to button or zip something too tight. And then I do not buy that! But, my stomach feels like I am holding it in, like a muscle is holding it in for me! I hope that makes some sort of sense? It is very hard to explain!!!
If you have any other problems, urinary or female wise, you should go and get checked out by your gynocologist! Call up ovarian cancer on the net and see if you have any of the other symptoms of ovarian cancer, beside bloating.