Every morning upon getting up I shortly begin with a cough feeling of which leads to me gagging to the point of vomiting up yellow phlegm sometimes I just dry heave for a few minutes. Hard heaving though. Its been happening for about three years now and I can't find any answers. I'm also very lazy feeling throughout the day with not much interest in doing anything more than laying around. Please help if anyone has an idea as to what may be going on.