Hi, I recently bought a 2 month pullet from a local store. She was fine then, it has been 2 day from now she is weak and drowsy, eating & drinking fine. No disease symptoms. (No runny nose especially) Normal Feed & some scratch. ACV & some multivitamin added today in water Quarantined through. I hear a gurgling sound from her nostril. No hard time while breading. does not open her mouth while she breaths. She even sleeps on an open ground to walk around. She does walks for about half an hour and gets to sleep even in day time. A 60Watt bulb is equipped in her cage for heat (its cold over here). none of my other folk does like she does. Any held would be much appreciated. Thanks in advance.