I have a hen who has started wheezing when breathing with an open mouth and then it sounds like she's almost sneezing (high pitched squeal every now and then and when she does that she extends her neck and shakes her head). Any Ideas? No worms under her tongue and I don't feel anything in her throat of crop.
Hi @sgtscr3am21

How long has she been doing this?
How long have you had her?
Any discharge from the nostrils (mucous), runny/bubbly eyes?
You don't feel anything in her crop? Is it empty - will she eat/drink for you?
How do you normally have her housed - outside in coop/run - what type of bedding - is the coop ventilated well - any molds in the coop/run?
From the open mouth breathing and sneezing (can't hear the wheezing for the TV), but I would suspect there is wheezing from the looks of it. She may have a respiratory illness. It's hard to know unless there are other symptoms. Sometimes antibiotics may be needed in order to help with any secondary infections, but you may want to first try something like VetRx to see if that gives her any relief.
Try to encourage her to drink - offer some poultry vitamins if you have them. Wet feed may be easier to eat than dry feed or you can give her some chopped egg or tuna, but getting fluids into her is most important.
Here's some info on respiratory illness, but the symptoms you describe at the moment can be other things as well. Keep us posted.
http://edis.ifas.ufl.edu/ps044
My Delaware pullets make a weird squaking noise and I don't know if it is normal or not. They do it to communicate to the other chicks and I am trying to send a video but as I need them to make the sound they refuse.
Hi @Lover of the chickens We would love to see and hear your video when you get it

Pullets (and hens) can make all kinds of squawking sounds.
Each sound does mean something, but exactly what, it can be hard to interpret. As you observe your girls and listen to them, you will be able to pick up on a few things that's going on (and sometimes who is making the sound as well just by listening). It's a lot of fun and always something new to learn.