I have a 4 month old EE pullet that has had one issue after another...1st mites, then a broken wing and now she shakes her head a lot, and is starting to stick her neck out and open her mouth up wide like she is gonna scream....I have read that this may or may not be gapeworm. I have an older pullet in the same coop almost 8 months old and never had a mite and shows no symptoms like the EE does. Is this gapeworm?