My brother is going through a problem like he has chest pain and he feels his left hand and leg numb somtimes. We did ecg and 2D eco test and also a mri of head but everything is normal. He is going through this problem from last 7-8 months. He also goes for cycling he doesnt feel anything wrong while cycling. Before the pain was 24/7 but now his pain is like it pains suddenly and goes back and sometimes the pain goes to the backside. He used to smoke but he has quit and the pain has started after the quitting but the period of quitting is also very before like the same 8-9 months or so. Please help. Thank you.