Obamacare patients who go to their doctors for a free annual checkup are finding out that they may have to pay for the preventive healthcare visit after all. They are angry to learn that if they mention past or ongoing health concerns during the physical, that can result in co-pays and deductibles, according to The Wall Street Journal. Under the Affordable Care Act, preventive care includes screenings for high blood pressure and high cholesterol counts, evaluations for several cancers and diabetes, and vaccinations. The patient is allowed, in most cases, one checkup per year. But "wellness" care on potential new...