A 26-year-old young female presented to her obstetrician with complaints of heart palpitations over the past two weeks which worsen at nighttime. She denied chest pain, shortness of breath or lightheadedness. She had felt a bit warm of late but denied any frank diaphoresis. It is of note that she recently delivered a normal baby boy during an uncomplicated delivery 5 1/2 weeks before this visit. Her review of system was remarkable for loose stools occurring approximately 4 times/day. She denied any nausea, vomiting or abdominal pain.

She also denied myalgias, arthralgias, fevers or chills. She denied heat or cold intolerance. Physical examination: Her blood pressure was 146/90. Pulse 96 and regular and a normal temperature of 37 degrees taken orally. Her review of systems revealed clear lungs, normal heart rhythm, normal abdomen and a normal neurological response although she showed a…