I quite often feel like I cannot breathe. It happens pretty much every night when I lay on my side, so I have to try and position the top half of my body to be flat. It also happens throughout the day as well, and can get worse the more I think about it. It feels like I am breathing, but nothing is going into my lungs, so I have to take quite a few breathes to finally get the one big one, then after the big one I then have to start it again. This can go on for hours. Sometimes I even make myself yawn to try and get the aount of air that I need. I also find it hard to breath out of my nose when this happens. And sometimes it feels as if I am out of breathe even though I am just laid in bed. This has been going on for quite a few years now but is happening more often these days. Is this normal or is there something wrong with my breathing?