However, she has little energy, she insists she is still sleepy after 12 hours of sleep and will sob until you put her back to bed. She hates changing out of her pajamas, if you just let her hang in her bed she will literally stay there contentedly for hours. she will not or cannot follow any direction that she did not already want to do. So if her toy falls and you ask her to pick it up she will not unless she wants to pick it up even if she desperately wants it (usually this means in her mind it it's someone else's job to pick it up) it will end in sad tears. That said she almost never has a tantrum unless it it's about changing out of her pajamas or because she wants to go to bed.
They started potty training and have found that she can tell you pretty reliably when she needs to go but hates the potty, wants to stands up and if the stars haven't all assigned for her to want to go she can hold it for at least 6 hours (while being adequately hydrated no less). If during this time she asks for a diaper, you can say yes, let's go but unless you lead her to the changing table it will never occur to her to lead you there or get a diaper.
There is a small handful of people she enjoys being with but she HATES big groups. If you have the misfortune of meeting her with a big group she will forever dislike you. They have really struggled with family events and the like because of this, it is well past the point of being shy.
Lastly, she is really small, doesn't eat much but most alarming will pretty much never ask for food or drink. Her mom said it has been less than five times that she has ever asked for something. It isn't a house where they are always eating, breakfast and lunch are at the same time daily and dinner fluctuates a little but the only snack is if dinner is going to be late.
It truly seems like this little girl is depressed at times but she does snap out of it and became cheerful and animated sometimes too. The pediatrician seems to think things are fine but I think describing it can sometimes just come off as "easy kid, lucky parents." Any suggestions on what the next steps should be or what other things they should watch for or look into?