<prompt> The most common symptom of thyrotoxicosis is?PalpitationFatigue and weaknessDiarrheaHyperactivity and irritability  <response>: Clinical feature of thyrotoxicosis: Hyperactivity, Irritability and dysphoria mc symptom Heat intolerance Dairrhea Weight loss Tachycardia persists during sleep Hypeension Fine resting tremor Proptosis Warm sweaty skin Irregular menses Osteoporosis Proximal myopathy 