runny nose and lethargy!

[Nats Chickens]

My thirteen week old araucana pullet is pretty lethargic. her symptoms are:
Runny nose on her left side
lethargy
Harsh cheep
gasping for breath occasionally
there was a wormy or bloody or intestine liner poo, and it was either hers or her brothers
She is my only pullet. I have her and one rooster, who is her brother. They cost me all my pocket money. I really love her. They are both like puppies.
I put wormer and ACP in their water. I also have coccistat.
Does anyone have any suggestions? Please help.

 

[Nats Chickens]

PS: I can post pictures later.

 

[Nats Chickens]

She was gasping a bit when I went away for the weekend and left her in the charge of my little sisters. I am worried something has been incubating all weekend. But she seemed okay yesterday, though I only saw thirty seconds of her last night. I am scared its something nasty.

She fell asleep taking a drink. I am really scared.