So glad to hear your little one is much better. We ran into this with our 3 year old -kind of out of the blue for us.  Looking back, we were at my in-laws the day before and he was way off schuedule -no real dinner, no nap...and the next morning when he slept in & it was past 7:30 (usually woke between 6 & 7am), I checked on him.  We triple dosed & gave juice & oatmeal -it took about an hour for him to come out of it -2 days later he had a horrible cold with fever.  We’ve had this occur one other time for him & 1x with our 1 year old, (another Luke :)) when he went the first night without nursing.  We really stay on top of their meals & such, but those illnesses that come out of the blue just terrify me!! Best wishes to you all.

Darlene