Movement Slowed Down?

Christina
I've read a few stories about people saying right before they went into labor, their baby's movement slowed way down or some said they didn't feel the baby at all that day. I was wondering 1.) how true this was and 2.) when I should be concerned. My little girl is very active all day and I haven't felt her at all today (been awake about 2 hours) I've even ate to try to get her moving. I'm 38 weeks and probably just paranoid but I thought I would ask. tia ladies.