Ive been getting those pains lately too, and i got worried because the liver is found under the right ribcage.
I thought my liver was suffering from some kind of toxic substance i might have been ingesting (DRUGS)
but today i had a medical exam and my organs are ok..
I started getting this pain when I started upgrading my exercises in my routine, adding the following:
-1 arm deadlifts
what kind of exercises are you doing?