Unwell Chicks? Please Help.

Could be aspergillosis! (sp) that has silent gasping as a symptom, it is caused my fungal/mould spores. doesnt say about treatment but have a read of this:
Aspergillosis (Brooder Pneumonia) Causative Agent: Aspergillus spp. (usually A. Fumigatus)

Method of Spread

Aspergilli are common fungal organisms that grow readily in many types of organic material. Although widespread, they can pose a threat to birds if present in large numbers in the poultry house.

Birds are uniquely susceptible to aspergillosis because of the unique features of the respiratory tract. Birds have a complex system of air sacs that aid air movement through the lungs and help birds achieve light weight necessary for flight.

If large numbers of these fungi or their spores are inhaled, they may begin to multiply in the bird's air sacs and spread to other areas of the respiratory tract.

Signs

Affected birds usually do not cough, but exhibit a characteristic silent gasp. If stressed, their skin can become quite blue because of lack of oxygen. Severe weight loss is often seen.

Treatment and Prevention

Aspergillosis can be prevented by carefully managing the bird's environment.

Manure should not be allowed to accumulate, but should be regularly removed. Moldy bedding or feed must not be used for birds. Coarse bedding is preferable to fine as it produces less dust. Most importantly, feed or bedding that becomes wet should be removed immediately.

Good ventilation, cleanliness, and stress prevention are helpful to prevent this and many other bird diseases. Antifungal drugs are occasionally used on very valuable animals. These medications must be given individually, and treatment is often prolonged and expensive.

this was taken from this web site!
http://www.barnyardhealth.com/resinindompo.html

Debbie

What is their bedding! and how old? are they still on heat?

Their bedding is straw and paper shavings and they are nearly two weeks old?!?! Thanks for the advice guys, keep it coming

another possibilty could be gapeworm! but they seem a bit young for that!? unless they have been with older birds or outside? when they gasp do they stretch their necks out?

Debbie

Their 2 weeks old, their feathers are yellow/ brwonish colour, seem all intact and healthy looking. One has a yellow beak and had blood in and around its mouth, which it didnt have yesterday!? They havent been with any other animals other than the original 6 chicks. 

No their not under a heat lamp, we got told that as long as we kept them nice and warm we wouldnt need one. Theres only 2 of them now