Today we went to the kidney doctor. I'm not sure HOW I missed it before since it could be critical but one possible cause for what's going on is Renal Tubular Acidosis. The treatment is sodium bicarbonate. She's been getting 9 ml 3x/day since her Thanksgiving visit but her...well, some level is still low so Dr. Grossman wants her to have 9 ml 4x/day. That's a lot of baking soda.
Not totally sure how everything falls together but some other news:
Her iron is low.
Her hemoglobin has been steadily falling since October.
More bloodwork for Emily. An ultrasound scheduled. More doctors' visits looming.
Hopefully some answers, too.
Here's our little ladybug when she's feeling well.