When I have a mix of personalities, I provide extra feeding locations. Though that probably isn't the issue. Most I've seen still manage to run around any bullies and eat on the run or wait until the coast is clear.
That feed is missing some key points on it's guaranteed analysis. Maybe it isn't required by law so they don't include it. But it's kind of important to know how much calcium is in it. Which feed are you using? Starter, layer, natural layer?
When I suggested egg binding for some reason I thought I had seen she was laying already. That doesn't change that it still could be. First eggs could be double yolkers or more and too large to pass. There can be hiccups as the reproductive system gets up and running. If she isn't familiar with the lay boxes yet, then she wouldn't be staying in there trying to lay as some egg bound ladies do. When I put green poo, reduced vocalizations, and abnormal body posture into that symptom checker... there were a few things that popped up. The ones that stand out most as possibilities are egg binding or diet. And I've never YET seen diet cause a weird stance. Only other thing I could think would be blockage of some sort in the intestines or gizzard/crop.
Some of my Silkies also don't make it up the ramp and require help to bed every night. We consider them special needs! My hubby isn't fond of it since we have to be home at roost which is every sunset. It's a real drag especially when winter days are so short stops us from being able to make trips to city as easily.
Just yesterday a hawk flew into a tree nearby and stayed from 1 pm all the way past dusk.
Agree with Wyorp that hydration is KEY. And note that my assessment is based on the fact that I'm thinking of the green feces that makes it out as runny or liquid and not as a solid. I also agree with wyorp that if it is normal consistency that may not be binding close to vent. The calcium suggested is about supporting the muscles she is going to use to pass the egg and not about trying to harden a soft shell.
If the feces is indeed liquid, I would consider adding electrolytes to the water. Simple recipe is... 2 cups warm water, 2 tablespoons brown sugar, 1/2 teaspoon each salt and baking soda. Stir until dissolved and serve full strength. Vitamins are a bonus. And scrambled eggs are loaded with nutrients in addition to being easy to digest.
Yes, I have tried trimming my fluffy crest which made it poof much worse (turns out the cheeks are part of they issue), though it did allow some daylight through and we saw some improvement in her abilities. Now we are waiting for it to grow back out, which interestingly it is and I thought feathers would only grow back before molt of they were pulled out all they way. We are gonna try a hair band instead. But even some of my girls who do see well don't make it to roost alone. This is probably something that we created with them being creatures of habit, why change what they are used to (in their perspective).
I am not an expert but I just have a few questions that might help narrow down a few possibilities:
Just trying to help. 
