When I was diagnosed with sleep apnea several years ago, I was prescribed a c-pap by a neuro who specializes in sleep problems. I was already diagnosed with mg at that point, but wasn't having problems with my breathing. When the breathing problems hit in 2005, I discovered the c-pap was a great help - to the point I started using it during the day if I was having breathing problems. The the first time I was in the ER for breathing problems, I had an ER doc who actually knew what mg was and he ordered a bi-pap for me. That did it! After that, I asked for a bi-pap. There are times I feel I literally can't breathe without it!