Fluoride is good for your teeth. Not sure what you're talking about, but it's scientifically inaccurate. Also, fluorosis is a cosmetic issue, it doesn't weaken your teeth. And it happens when you're growing your permanent teeth when your parents forget to teach you to not swallow your toothpaste. It wouldn't affect you now.
If your water is over-fluorinated, you have far bigger problems that stem from your local government.
If your water is over-fluorinated, you have far bigger problems that stem from your local government.