It may sound strange to ask this but I just have to. After my meals, I notice my stomach a bit more bigger than before meals and it takes about 5 hours to get it down again. It's almost flat without food, like when I'm fasting and stuff. I got worried I even measured my waist before and after lunch and dinner and found out my gut expanded and inch or two. I just want to ask: Is this normal??? And when looking for clothes and answering questions about my waist, which should I use?