Snoring and gasping for breath during night is a usually earliest sign with excessive daytime sleepiness, fatigue, feeling unrefreshed, night sweats, morning dry mouth or sore throat and headaches
. There may be a family history. Overweight, large neck circumference, enlarged tonsils, structurally abnormal airway, smoking, alcohol and sleeping pills can be some causes. Losing weight is one of the best things to do. Avoid alcohol, smoking and sleeping on to your back.