Ummm....it's been 3 full days since you posted asking for advice. Hate to pile on your troubles BUT those babies sound like they are out of time. You need to stop with the
and the
if you intend to keep them all from dying. I understand that getting conflicting advice from a bunch of different people does tend to paralyze a newbie. I feel bad for you, but that's the nature of BYC. If you are reluctant to treat your birds unless you are absolutely certain what you are treating, then you really have no choice but to consult a Vet. I hope you do so quickly.