A mother gave bih to a male baby in her home 2 days ago. The mother complaints that she is anxious, unable to tolerate heat and is fatigued most of the time, and repos that she has not gained much weight despite having an increased appetite. She also told that before pregnancy too she had similar complaints. On examination, she has a tremor, her HR is 100 bpm and has bulging eyes. Based on mother's findings, baby is most likely at risk for development of which of the following?