I've always been anxious that a FBI agent was watching me while disguised as a homeless man.
That's interesting, why would you think it FBI agent dressed as a homeless man was watching you?
It's just always been in my mind that the homeless man was watching me and he was an agent.
I know you feel like you're be watched, but you don't want to become paranoid and stressed about everyone around you. It will lead you to become too suspicious of others and it's not good for you mental health.
I was feeling paranoid and I wasn't thinking, I'm sorry.
You don't need to apologize to me, but I would recommend seeking some therapy. These episodes of paranoia can be underlying causes to mental illness.