Wow calm down, I'm just telling you what "i know" but I'm no dr.
You should call your DR then instead of asking for opinions
My own doctor told me it cuts off circulation from embelical cord to the baby, dont tell me im wrong.
No baby lays on an artery when you sleep on your back
Ive heard sleeping on your back cuts off blood supply to your babys brain, which is why your not supposes to.
Have you tried the orange juice trick? Drink a bit and see if that perks her up?? I'm sure everything is fine though . . . but it is peace of mind when they start squirming again! hang in there!
Sleeping on your back hurts you, not baby, any time there is a drop in movement under 6kicks an hour you need to call your dr.