I always feel sick after laying on my back… When I lay flat on my back I get light headed and the longer I lay flat the harder it gets for me to breath… I feel like there is an elephant on my chest. But the real problem is when I try to sit back up. The longer i lay the worse the dizziness is when i sit up. I have been known to pass out after laying to long many times. I have also experenced those paralyzed moments 2 or 3 times before i didnt know what was happening so it was very scary and it only happend when i ended up sleeping flat on my back i felt like i was awake and wanted to scream but i couldnt. I now sleep with 7 pillows, practicly sitting up to make sure this never happens again!