Also,
-kidney pains off and on stingy/sometimes achey
-chest pains off and on
the left part of my stomach specifically

There are probably a lot of factors that could be causing you to feel it all over your body.

*overweight- your body has to work harder.
*i'm not certain but maybe high blood pressure.
*you have different pressure points that you can feel your pulse from. Like in your neck, wrist, upper arm, inner thigh ect.

If your physically active! I know when I work out I can feel my heart beat throughout my entire body.

If your so concerned I would ask your doctor to make sure it is ok!

The thing that is scary, is how had my stomach pumps. I can see it through my shirt pretty much anytime. I heard of problems with the aoritc artery to cause this, are there other symptoms I should look for if it would be that?

My heart beat also fluxuates between about 55-about 95.

Just tryin to think of what could be causing this outta nowhere

i get this all the time look at anxiety or stress