A Meltdown over Poop

This is only ONE of the many differences between our 2 kids, but its a difference I'm struggling with a lot.  Aria has had a rough go with her tummy since 2 weeks old.  First was a battle with colic (here was the beginning) and now is a battle of constipation.

Aria has been breastfed until a week ago, when we began introducing formula 1 bottle at a time.  Her first formula bottle was 1 week ago and she spent the next day "spitting up" (I called it throwing up because it was everything she'd eaten... the nurse didn't agree since there wasn't any "wrenching").  My initial thinking was... omg, what did I do to our poor baby girl?!  But I followed the nurse's urge to continue formula and allow her little body time to adjust.  The next day, I noticed that she was only "spitting up" when she was straining to poop.  (Pooping has never been her strong suit, usually going days -a week, a couple times- between bowel movements and often times harder stools.)

After talking to the doctor and nurse on the phone a few times, we have tried: eating prunes, drinking prune juice, tummy massage, water, and bicycle legs. The catch-22 of the situation is that she doesn't poop every day, which means she doesn't have to feel miserable while pushing every day - but also I'm sure it makes it worse when she does since it's not a daily occurrence.

This morning, on the way to preschool, she began straining to poop and "spit up" clear liquid, enough to soak her shirt.  I hurried home to get her cleaned up and hopefully find a dirty diaper.  No luck.  All that pain for nothing... just a wet diaper. For the next hour, she went about her day eating and playing without any trouble.  Until she tried going again... up came most of her food, again (but this time it came out of her mouth and nose and was very thick).  She did successfully get a small nugget out, but man... this is not OK.

A serious conversation with her doctor (and the med student that always happens to be there for appointments when I don't want him to be) about her tummy troubles, and our major concern for her not growing more quickly, I left with our 12 lb 2 oz, 8 month old and headed to Walgreens to pick up Miralax and some high calorie baby food.

1 teaspoon of Mirlax into a bottle after dinner last night, a good night's sleep and a painfree poop later... she can suddenly crawl!  Imagine my surprise when I set her down on the floor this morning.  Poor girl must have been miserable!

Is she the only one with these tummy troubles?
XO!