Hi. My father (59 yrs) is having breathing problem since past few years. The problem get worse after he gets up from sleep in the morning and that continues till 10 in the morning. One thing has been noticed is that if he remains awaken whole night then the problem doesn't arise. It arises only when he wakes up in the morning. Please suggest some ways to cure this problem. Also suggest which field of doctor should I consult for curing this.