Re: dropped to 25th percentile from 50th- long please advice :(
Hi Mama! I'm sorry you're so concerned, but I don't think you need to be as concerned as you are. It's normal for weight gain to slow or even stop once your child becomes an active, mobile toddler, and is spending a lot of calories on motion, and IMHO crossing some percentiles in the height department means a lot less at this age, too: any moment now your child might shoot up and start outgrowing her clothes. I know my kid will sort of pause and not grow taller for a while, and then will suddenly grow enough that she needs all new pants.
I don't see how in the world weaning would help- breastmilk continues to be terrific nutrition after the age of 1 (see this abstract), and if your child won't drink cow's milk, then it's nutritionally important that she continue to drink breastmilk. As you said, if you wean her, she may be "just like now -just worse", because there's no reason to think that weaning will encourage better eating habits when it comes to solids.
Personally, I would let her nurse as much as she wants and just accept that she's going to eat what she eats, because you can't make a child eat, no matter how much you want to. All you can do is present the child with good choices. I would concentrate on high-calorie solids like whole-milk yogurt, avocado, cheese, meat, beans, and add a drizzle of olive oil to her low-cal solids. And it won't hurt to offer a daily multivitamin, just to be on the safe side when your child has a limited diet.
Your diet should not have any impact on the quality of milk you provide, so no worries on that score!
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"