Follow-Up: I have using my CPAP for 2 weeks with a humidifier. Snoring, i don't feel tired in the morning, dried mouth, night perspiration are all gone. But I kind of feel a chest pain everytime I wake in the morning, it just pass away after 30 minutes to 1 hour especially when i burp. I will consult my Doctor tommorow(06/12) anyway. What's seems to be the problem here. Is this is related to using of CPAP or anything else. Thanks.