Hi, My 2 year old hen is- 1. Lethargic, weak, quiet, not socialising with group 2. No strength in her legs- can't jump up onto ladder 3. Brown, runny poos 4. The comb is floppy at the back. 5. she eating but only small bits of food and drinking. She was peacking the grass yesterday and today. She has a fairly bad heavy infestatin of Red mights. We put Barrier Red Mite Concentrate on her last week and then we put Frontline Spot on cat on her yesterday. She is still abit unsteady on her feet as well.