Hi churchlady,
Welcome to Neurotalk!
I noticed your message hadn't had any replies.
Heck, I'm just a mum but I would suggest that your friend take her child to the doctor as soon as possible and get this checked. I guess it could be a colic/pain type of problem, but I would want to make sure the child wasn't having some type of seizure activity. That's just my feeling from having read your message.
take care,
Lara