Palpitation and perspiration during meditation or prolonged silence

To Acharya Agyaatadarshan, I am a doctor and presently staying in ashram from past 2 years.i am doing meditation on and off from past 15 years. I am 35 years old.from past 2 years I am doing intense meditation.in jan 2015 I started with 21 days silence. I was doing 8 hrs meditation daily(silent sitting),asan […]