Re: After lunch pooping and gas (embarrassing, I know)
I get the urge to go right when I wake up too, and sometimes when I did that, I would go a second time a few hours later after eating. To control having just have one BM a day, try resisting the urge when you wake up (I have to sit down in a chair) and eat a quick breakfast (I do hot oatmeal + ground flaxseed, or a banana), and then go after eating.
Other tips I've heard from people to make it easier (and not strain) - plant both feet down on the ground, heels together, and bend over with your chest close to your knees, and push with your ab muscles more. The issue is that you may not be evacuating completely in the first BM in the morning, and after you eat food, it helps stimulate the feeling to go more.