A 35 yeаr оld mаle presented tо her primаry care physician cоmplaining of heat intolerance, weight loss, a fine tremor in both hands, sleeplessnes, bulging eyes, palpitations, weakness, and fatigue. Laboratory results revealed: T3= Increased T4= Increased TSH= Decreased Radioactive iodine uptake test= Homogenous radioactive iodine distribution What is the likely diagnosis ?