Maybe it is the cold hitting my brain.
Ooops, let me say first--if I don't appear very often, I am having problems with my internet access. Last night, I could not connect, so I thought maybe I did not pay my bill. However, it was on this morning and has disconnected several times.
Now to my brain story. Last night I was freezing in here. This morning I wondered if the heater were heating so little it would soon be unable to heat at all--slowly dying since it is 25 years old. I don't have a backup. I went over and the heater was as its lowest setting. NO WONDER I was so cold. No wonder I am still cold. The outside temperature is still only 24 degrees, and it is still frigid in here. I am attempting to declutter while it is daylight, but that is slow going. Maybe the heater will make up the lack of the last two days and finally get the room warm.
Do you ever assume something is on only to find out that the reason it won't work is because it is off or not on the right temperature. I know you have thought you were preheating the oven when it was really off.