Elfie was a bit slow at first. Everyone else would run for treats, she would just watch. That kind of thing. I made sure she got vitamins, probiotics, I watched her more carefully - she wouldn't preen after a bath, so she got the dry washcloth treatment.
Happily, it is difficult to tell now most of the time that she's a little different. I don't think she would have made it without some TLC. But she's part of the flock. Does a few interesting things - gets into repeat mode, running between food bowl and water. I mean, for half an hour at a time. Back and forth, back and forth. She is sweet and beautiful.
So, I pray your special baby gets the boost she needs and becomes part of the flock and catches up some.