I'd place her somewhere warm and see if she gets well enough to eat and drink or at least to swallow if you dip her beak in water, but otherwise I'd leave her alone as much as possible and let her rest. If there wasn't any signs of illness yesterday, my guess would be that she boinked, yes. In any case, I wouldn't be worried about eating their eggs. For the eggs to be dangerous, it would need to be a disease that is a) passed to the eggs, b) disease causing in people in the amounts present in/on the eggs and c) able to survive boiling or whatever you do with your eggs. I don't think there are many diseases like that. You might want to make sure to hard boil your eggs for a while.
They do have oyster shell or some other calcium supplement, right? And their feed has enough protein and vitamins? And they always have water? And nothing suggests she s egg bound?