question: My 28 yr old son, has been diagnosed with low white blood cell count, had a bout of vomiting last night along with his nails turning blue, shaken and short of breath. I put him on my CPAP for 10 min and the pink cam back to his finger nails and his eyes were blood shot. he had diareah this morning. While at the barber shop this morning he felt nuseaded and passed out for 5 minutes. EMT cleared him, however I m still concerned.