I am 39 weeks pg and have a lovely collection of stretch marks on my tummy. Thing is I have noticed that the skin on the area above my belly button has now become numb. It seems to be just this area though - the feeling is a bit like when you fall asleep on your arm and try and touch it - you can kinda feel the touch sensation but if you dug your nail in it wouldn't hurt. Does that make any sense? Anyway - my point is, is it normal for stretch marked skin to become numb?