I have a 1 1/2 year old EE hen that comb isn't staying red. She's been acting a bit strange for 3 months now. She quit laying for about 2 months which is normal (molting). Then her comb got red and she started laying, but it pales throughout the day. One minute it will be bright red and then the next pale. This goes on all day. She's laying 2 eggs then takes a day off and this is normal for her. She also had some kind of a cold/resp. issue for 3 days, but that seems to have cleared up and that was 2 weeks ago before she started laying again. Do you think maybe this has to do w/ her comb changing colors all day long?