Thanks Guys. Yes, she has every symptom talked about, and yes, saw her sniffing ground a lot.
Question though - is it normal also for her to take a "day off" from all the behavoir. Yesterday she spent the two full hours digging with her hind legs (never saw that before, normal digging would be primarily with front legs), clearly a nest digging, but no eggs
BUT today, nothing. Not acting crazy, not digging, eating again. Sound ok? I figure she must be pretty much starved and tired from non-stop walking about and then the digging, with very little food for days. Maybe she's gotta rest up before trying it again?