The pressure to be a mom -- and a great one at that -- is enormous. It sounds like you're doing an awesome job & have a healthy, bright, thriving, and mobile lil' one.
I'm not in the same place with the charts but nursing with just one breast I was constantly worried if she's getting enough, if her eating every 1.5-2 hours means she's never satisfied, or if (and yes, I've really had this thought) exclusive nursing was "unfair" to her.
None of it is true.
One thing I've learned in the past 6 months is to aspire to be a "good enough mom" and to trust my baby's signs more than books, doctors, and others. And that all moms have something they worry about. I'd say that crawling, good diapers, and meeting those milestones is cue enough -- you & DD are doing great.