One of my hens have been just laying on the ground the last two days. Ive inspected her for possible egg bound, excess mites, no runny nose or eyes. All checked out fine. No bobos. I dont know how old she is but where I got her they said approximately 1 year. She'll get up and eat and drink. I do have some sulmet and wazine here but I don't know when I should use it. I'm new at this so i bought it just to have on hand.