"Growth-Chart Anxiety"

I am angry. I'm angry at my daughter's "Pediatrician"(it wasn't her normal one, it was the nurse practitioner) for scaring me so badly. I'm also irritated that some people didn't really take my fears seriously.  But back to the stupid pediatrician.  At Camry's 6 month appointment she came in right around the 10th percentile for her height and weight, 25 in, 13 lbs 3 oz. She had gained 3 oz and 1 inch since her 4 month appointment.  I had noticed that she wasn't gaining pounds since her last appointment, but she was hitting the milestones with no issues, right on time! So I figured that there wasn't any problem. Then the NP comes in, and tells me that if she hasn't gained 2 pounds in the next month, that I need to bring her back. She acted as if it were very urgent. She acted as if serious harm could be done to my child by her not gaining weight. She acted as if it would be my fault, that it was already because of her low weight gain so far.  She tells me to start her on solids immediately (I had to ask how often and what kind of routine. She would have just walked away if I hadn't and I would have been even angrier). 
So, I go home and start her on solids.  Basically, immediately, her poop goes from nice and mushy to adult poop.  And it HURTS her. She screams and cries and doesn't want to poop, and then constipation causes her more pain. And she isn't getting the proper amount of liquids because the dumb NP didn't give me any info about that.  So, I go back to the beginning and give her food 1ce a day and start giving her bottles of water and juice (it took us a bit to figure out that she does NOT like cold drinks or food).  And she gets much better about eating and pooping. 
Now it's been almost 6 weeks and she weighs about 14 lbs 9 oz.  If I were still worrying about what that stupid NP said, I'd be terrified because by now she should be weighing at least 16 lbs.  She eats 3x a day, gets water/juice 2-3 or 4 times a day and nurses twice. She is happy and healthy and teething (grrrrrrrr!).  But she's still under that weight goal the NP gave us.  How the heck can you expect a sweet little baby to gain that much weight like that? She's small, her parents are small. It has nothing to do with how she eats, she LOVES meal times, and lets us know if she wants anything to eat or drink, just like she always has.  She loves sweet potatoes and applesauce, and HATES green beans (which is hilarious to watch, but frustrating as a parent striving for a healthy diet). 
So tonight on twitter I saw this link to an article from BabyCenter called "Do you have growth-chart anxiety?".  And I read it. And it's awesome! It explains that there are actually 2 growth-charts, one from the CDC (Centers for Disease Control) and one from WHO (World Health Organization).  The CDC one is 50 years old and focuses on formula-fed babies, while the WHO one is much more recent and focuses on breast-fed babies.  According to the WHO one, Camry is right on schedule.  I feel so much better! I'm angry that there is such a screwed up system in place. I'm angry that these people are allowed to scare new mothers into thinking that there is something wrong with their precious, perfect babies.  Because that is exactly what Camry is, petite, precious and perfect.  So for all you ladies out there who read this with petite posterity, have no fear.   Your baby is just as God intended.