I'm 37 weeks today and as I have dealt with the normal shortness of breath that comes with pregnancy I am having trouble with it right now. I laid down in bed and I've been laying down for about 20 minutes and I feel like my lungs aren't getting enough air (if that makes any sense at all) I keep having to take deep breaths and it still doesn't feel right. and even though I change positions it isn't helping. is this something I should be concerned about? or should I just elevate myself and deal with it?