My 10 week old easter egger pullet is gasping for breath ocasinally sneezing and shaking head.no swolleness,discharge nothing is stuck in her throat.no other birds have her same virus.has been going for an hour or so.crop is empty Fed water mixed with sugar and Apple cider vinager( both a small dash) Placed on and off a beanbag. Not gapeworm because I seabed and no bloody strings were there. I put de down today could that have done it. I got her a few days ago she is isolated and closing her eyes Please help!!!!!