Hello, I'm looking for some advice on my chicks I purchased almost two weeks ago. They all seem very active, are eating and drinking. However, in the last two days some of them have started to sneeze and sound a bit raspy when they breath. They are still active. I'm not sure if there's something I should be doing to make them feel better? Or if this is the start of something I need to be worried about? They are receiving Amproliom 9.6% Oral Solution Coccidostat every Monday in their water and Baxter Barn Immune Boost on Wednesdays in their water. I was told by the store I purchased them at this was their routine I should follow. They are currently staying in a very large storage tub with pine shavings in my spare bedroom. They have a heat lamp and I change their food daily and try to change their water twice a day if needed (they like to kick a lot of the shavings and poo in there even with propping the water up a couple inches above the shavings). I don't know if this makes a difference but here's the breeds I have: 3x - Easter Eggers 3x - Crested Polish 3x - Welsummers 1x - Dark Brahama 3x - Barred Plymouth Rocks 2x - Red Shouldered Yokohamas Some hatched on 3/2/2017 and the others on 3/9/2017. Thank you guys for any advice! I really appreciate it!