once i went to my friend s house for studying. there for the first time i observed this- my left arm was shivering very hard for around six to seven minuts continuously.i got very scared.but its been few months now and i didnt observe it again.but still i want to know why that happened???
Hi, In your case probably you kept the arm on the edge of a bed or chair. This position can cause pressure or irritation of the nerves causing tremors which feel like shivering.  Since it never happened again means that there was no pressure on the nerve again. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.