I'd cut out all the extras, just the pellets.I'm making a mix for her, crushing a little corn and mixing a ton of sunflower seeds and a little barley, flax, oats, and pellets together. She mostly wants the sunflower seeds and corn. I'm trying to put some weight on her.
What kind of pellets, protein and calcium percentages?
That can happen when they drink too much too fast.I dont suspect her of having sour crop now, but I'd like to know if the water that shot out of her mouth was related in any way.
Or her crop may not be emptying properly.
To check crop function, put her in a crate at night with no feed or water,
check crop at night then again in morning before feeding/watering again.