They do not teach rolfing to someone unless they are already experienced in massage therapy. They only get certified if they do it just right. My rolfer later became a chiropractor.
I never got bruised but some people bruise all the time like with the slightest bump. Yes it hurts but feels good. It is like the stretching pain in yoga. One of my nostrils was not in good shape which I did not even know about. Remember that in hospitals no one ever experiences pain. They experience discomfort. There is no difference in them just like passing away or dropping dead.
One move in postural integration on my neck is more painful on ME than anything else. But it also helped me more than anything else.