Diagnosis is based on bowel habits, symptoms, and medical history. Rome III, a set of criteria used to diagnose functional GI disorders, describes the diagnosis of chronic constipation as constipation for at least six months as well as specific symptoms for at least three months (eg, straining with at least 25% of bowel movements, details here).
Place the sugar cube in the bottom of an Old Fashioned glass and soak with 4-6 dashes (or drops) of Aromatic Bitters. Add a splash of water and muddle the sugar until it dissolves fully in the water and bitters. Only add enough water to dissolve the sugar. Add bitters and water to sugar.
The most important thing you can do to prepare your home for sale is to get rid of clutter. Make a house rule that for every new item that comes in, an old one has to leave. One of the major contributors to a cluttered look is having too much furniture.