I've been having this problem every night for the last few weeks! Everytime I lay down at night I find it hard to breath! One night it was so bad I started to panic which led to crying which made it so much worse! I went to the doctors the next morning and they tested me  for astmah which I don't have and said it is happening because my organs are squashed and laying down makes it worse! I'm now having to sleep practically sitting up will a ton of pillows propping me up at night. Anyone else experience this ?