My wife has mild endo. After many failed et's through other fs's Dr nick lolatgis did a uterine nk cell test which came back negative. Is it possible to have normal unk cells but high blood nk cells and this be the reason we can't get pregnant? also did anyone have any unusual symptoms along with this like itchy skin flaky skin or not catching many colds etc? Usefull answers/experiences would be greatly appreciated.