If you're not harming anyone maybe they won't section you. They would probably give you medication. How much distress does it cause you? Can you deal with it on your own?

Certainly they shouldn't section you if you are not a danger to yourself or others, but if it is making you too anxious you might need help. It's up to you whether you tell anyone or not. But until you test it out with someone you trust and see if someone else experiences it too you won't know if it's real or your imagination. Is there anyone you can trust?