My White Leghorn Shirley is 10 months old. She has been laying 6 or 7 eggs a week, but none in 4 or 5 days now. She looked a little pale for the first couple of days, on the 3rd and 4th days she was still pale and was closing her eyes and resting a lot. She would run over to food and then walk away with out eating. Today she looks better (less pale) and she ate some grated cheese and rice. Any idea what might be wrong with her? She gets organic lay pellets, oyster shell always available, healthy treats once a day (rice, cheese, kale, leftovers, etc.) and she free ranges on grass with the other 3 girls most of the day.