I also have a child, who's 1 and a half, and I carry her mainly on
my left side
, and she also mainly lays on
that arm when I breastfeed her. When she's playing around she crawls on my chest sometimes and it absolutely kills me. Also kills me if someone tries to massage my back on that side. It made me scream when my husband kindly tried to do it! I have a history of rib problems including dislocations (I have hypermobility syndrome which make my joints prone to dislocation).