You've got to love the pets, eh pr!
I too would have imagined E to be the first crawler! Whenever I go shopping, and put F in the baby seat in the trolley, I think of that photo of E all smug in his big boys seat.
F has very little on-ground time, thanks to reflux. She has rolled many times on one day, and never since. It's like she can't remember how to anymore 
Pass I'm with you on that article. I would have loved it if a darkened room and shh-patting was the answer, but certainly in Fs case, she needed help for her reflux. "Colic" is a good old catch-all phrase though isn't it. Much loved by MILs the world over!
Interesting though about babies turning away when they're overstimulated. DH gets quite cross that every evening, F won't look at him. Looks away, quite pointedly
. But perhaps that explains it. It'll certainly make him feel a bit better!