If I have something on my mind, I don't know who to talk to.

You are too sensitive and suspicious. When you see two people whispering with their backs to me, you will feel as if you are talking about yourself. I don't know why you have such a suspicious personality. I can only say that I hope you can adjust your mentality and don't think so complicated about a very normal thing. Everyone has his own life. Not everyone just talks about you when they have nothing to do. Open your mind and don't fall into a dead end. Live.