There are several of us here in TN w/ hatching problems which I really do thing have some to do w/ the repeated massive air pressure changes, it has been really extream, not just the day the SE had 30 tornadoes but repeatedly for the past 14 days, during which I know we've had over 3 days w/ winds 60-80 mph, and a combined total of over 14 inches of rain, also ice storms, hail, and today freezing fog. I figure if a stormfront can cause a sinus headach, it can cause other things, like maybe issues w/ keeping incubators working properly!