For 2-3 days my new hamp(11 Months old & has been laying 6 days out of the week) Has been nesting and acting like she is trying to lay an egg. After 1-2 hours in the nest box she will come out and sing the egg song but no egg. I checked her vent and couldn't see an egg. What do you think is going on? Also, She has been having very runny dropping. she eats & doesn't act any different. Thank you & Please help!!