Pedi says she's perfect :-). Nothing seemed off at all, and no need to do any more tests. She's 50th percentile for height and head, 30th for weight, and she thinks she's walking really well for just figuring it out within the past two weeks. For the first time in six months I left the Pedi's office with dry eyes!
Thanks to everyone who responded to my PP. It made me feel much better to know that people understood my anxiety!
Re: Update: RE DD's 18 month checkup