Doctor I am feeling faint since last 5 days when I sleep or lay on bed I am alright but as soon as I wake up and go outside my building or do some physical work outside I suddenly feel dizzy and feel faint also my legs weaken at that time and my legs and hands shake heart beats go up, it also happens when I am nervous, the issue is from last 5-6 days I got my bp and sugar level checked and its all normal, also I want to inform that I was on medication for 4-5 days due to cold cough and was taking tab cefablast with tab colvaxy and tab cyra, as soon as I stopped my medication I am getting this issue since that day I went to doctor and he gave me vitamin b complex and oral solution kindly help me as this issue is stopping me from doing my regular work, also I need to tell you that I just got a job 1 month back and I have to sit on chair for 9 hours everyday in front of computer if that helps kindly say what to do.