Confidentiality is very important and the only person I would discuss my clients with would be my supervisor who is also bound by confidentiality. If you would like to know who my supervisor is I will be happy to tell you.
In exceptional circumstances I may have to break confidentiality if I was really anxious about you self harming or harming someone else. I would hopefully be able to discuss with worry with you.
If my employer or my doctor contacts you would you discuss me with them?
I will only discuss you/your issues if you give me written permission and we agree the issues to be discussed.