I mentioned to my employer that I am going on medical leave, and I don’t want any of my staff members to know. They have told my team that I am away for medical reasons.

Thank you for your question. Your employer could have simply told staff members that you are on 'leave', rather than specifying that the leave was for medical reasons. This may be a breach of privacy by your employer, although your recourse in the circumstances may be limited. Feel free to contact us at the number below if you would like to discuss your situation in more detail with one of our experienced employment lawyers.