The house of Babel

If you are foreigner to Chinese and mess up “Yan” and “Yang”, I probably will spend one hour to tell you the difference. When I delivered the baby, I was messed up almost by everybody. There was a roommate named “Yu”.
The first thing was that the nurse almost gave Yu’s baby to me to breastfeed. And then all the time when I called the nurse, they got angry at me, “did you just call us?” After I came back home from the hospital, they made an appointment for me because they thought I had C-section. And then they send us a paper saying I had C-section. I did not have C-section. It was “Yu”.
How should I do?