My guinea hen looks pretty bad. She keeps trying to throw up (at least that's what it looks like -- as if her long neck is doing the hula and she's heaving). Just saw this after I fed the chickens, first thing in the morning. So frustrating! I visited the vet last weekend with the other 2 naked neck hens and it turns out that they have totally different problems -- nothing contagious!!! -- but both are definitely sick from 2 different probems. Now the guinea is doing poorly also. 3 hens, at least 6 years old each, then one gets sick, then the other, and now the guinea. The guinea was perfect last night! Now this. Each one with a totally different ailment. I'm stuck. I'm lost. Help!