How do I hold an orthopedic rehab responsible for invading my privacy?

When my mom was in an orthopedic rehab the staff would report to my sister every time I would walk downtown to go shopping the nurses going into work would call on their smart phones and androids and report me to my sister aka pain in the butt thorn in my side POA. They would say that I was walking against the light when I was waiting for the stick figure to light up so I could walk across the street. You see the doctors misdiagnosed me with bipolar disorder a long time ago and will not own up to it. I have a pituitary gland tumor because it showed up in my blood work that my prolactin level was very high. I am in my right mind I do know how to take care of myself. The nurses and the CNAs just thought to make themselves look big that they would lie to my sister. They even put her cell phone number into their phones. I am now afraid to go out of the house because of what other lies they may tell someone about me.