Freedom of speech didn’t say you should only speak in the English language! If you think people are talking about you all the time and you have paranoid thoughts, go see a shrink and take your medications, please! It depends where these nurses use their knowledge of a foreign language. If it is in the break room or staff lounge and you’re on break, I don’t see any issues with that. If your co-worker gets upset because she couldn’t butt in your conversation or she has paranoia, that’s not your problem. It might be rude but she’s too nosy too…..so serves her right! If you are talking to a patient or giving report, then it should be in the English language. If you are on the phone and talking to your family while on break, I don’t see why you can not speak in Filipino. When you’re on the phone and talking to a patient’s family, then obviously use the English language. If it’s about patient care and you are sharing the vital information to the team, then use the English language. Otherwise, you can use whatever language you like!