This is my first time incubating so maybe I'm just being frantic over the small stuff. I have held steady between 45-50% humidity since day one but when I woke up this morning my humidity was 26%. Before bed it was 48%. Is it a risk to have such a drastic change in humidity in a short time? My incubator had run out of water but I re-filled the reservoir and the levels seem to be back to where they were.