The doctors is the obvious answer, I did go and he just said it was random aches. I will pursue further but I want to know if there is a particular test I should request. I get a lumpy feeling on the left side of my chest which gives very, very mild aches now and again. It s hard to describe it but it feels like I can feel my heart. The other day I also got a pulsing ache in my thumb, again very mild, which was in sync with my heart beat. I thought it could of been because of the way I was position so I did standup, stretch my arms and so on but it was still there. Just thought I give you a little idea of what I am feeling but if I wanted to check my heart, is their a certain procedure I should ask for?