I have had the following symptoms for over 6 weeks; dry cough which isn t constant but I kind of wretch when it comes on, burning and an awareness of my lungs, when trying to meditate can t take a full breath, and fatique. I was in Tucson, AZ last summer cleaning out my parents old shed with lot s of dust so I thought of Valley Fever but these symptoms went away all winter and now returned this spring? Any thoughts?