Hen gasping for breathe, possibly dying

[Anon112]

I woek up this morning and she was gone. Even worse my favorite hen is wheezing now. She is still active but every breath she is wheezing and she is sneezing. Another hen is sneezing, and another is hunched up...
It feels like it is a respiratory disease and is spreading fast. I'm terrified I have bird flu.

I'm so sorry for your loss. Like others have mentioned, a necropsy would be a really good idea if you can get one done.