When I'm laying down and when I take my first few breaths in the morning I get the sensation of heaviness and fluid deep in lungs.. it's hard to explain but feels like a shallow grinding sensation. The Dr has checked and I have no signs of fluid but it feels horrible. It goes away after I breath a couple times but I get scared because I expect it to happen every morning so I wake up with the anxiety. Sigh. I used to have asthma when I was a kid but this has only started since having my baby 4 months ago. The only other breathing issue I have is shortness of breath where I have to yawn to get a full breath...and I have had that problem for 7 years, dr's say I have normal oxygen levels so I don't understand!! Can anyone relate?