I have a 6 month old golden sexlink. (The one in my profile photo.) She began laying regularly at about 4 months, but after a week she came down with some sort of respiratory illness. She was quarantined in a large dog crate for 2-3 weeks while she recovered on antibiotics. She has been with the rest of the flock for the last month or two, and I haven't seen an egg from her since. Should I be concerned?