I had written about my wheezing hen. Presently she's not improving with her wheezing despite giving her good vitamins, electrolytes and probiotics. She's still eating well and active. But now she's developed this thing where out of the blue she'll tuck her head towards her stomach and walk backwards quickly. She'll do this a couple of times while I'm tending to the flock. Does anyone know if this is related to her wheezing or something else?