Yeah I've got two muscles or ligaments that run vertically either side of my belly and they are so painful to touch, even light pressure is quite painful, so when the technician pushed on those bits I kept jumping and yelling! She just learned to avoid them lol. It doesn't damage or hurt baby though, just yourself.
I did, but I was already sore from baby girl kicking and flipping so much. Plus growing pains and round ligament pains add to the pain. Rest as much as possible.