I'm on a roll

I love to roll from my back to my belly. I do it constantly. I roll on the floor. I roll in my crib. I try to roll in the bathtub and while I'm getting changed. I roll when I'm mad. I roll when I'm happy. I even roll when I'm asleep. After I roll to my tummy, I am so proud of myself. Then, I scream. I get very angry, and start shouting so that Mom will come flip me back over on my back, and I can do it all again. All day & all night: roll, scream, Mom, flip, roll, scream... My current goal is to learn to roll from my tummy to my back. My mom says I've done it before, but I don't remember that. But once I do, I'll be rolling all over the dang place. Watch out, here I come.