First time ever owning chicks. Everything has been going smoothly until this evening I noticed one of my 6 week old rhode Island red acting odd. So I observed hoping Im was just being a worried "mom" but no. My chick keeps her head in the shape of a "hook" meaning she walks with her head tucked down and she lays this way too. She also is twitching her head every few seconds. Even when she rests. While observing her this evening she actually fell head forward into a summersault. Anyone have any idea if she hurt her neck or if she is sick? She is eating and drinking.