Hi, hope everything is getting better. I have similar problem- just posted current video- under chickens4us- 1 week old chick, gasping,etc. Please watch video and compare our chicks. I have mine on two antibiotics and vitamins/electrolytes and put a few drops of the VetRX in drinking water and am using chick starter, medicated and have a 250 watt bulb about 10 inches above part of the container she is in. I did read in one of the online sites that chicks who turn their heads to the side may have a cold.
She was worse last night, but now looks like she did yesterday morning. Your lucky she is eating on her own, I am supplementing with a syringe regarding liquids and mixing in the feed. I am hoping for the best, as I have 6 other chicks she was in with and worry I will have an epidemic.