<span>-Feeling tired
-Sore muscles
-Joint pain
<span>-Fever</span></span>
Thing's like people telling you, you should have sex, drink, smoke, and other thing's you don't want to do. They may end up persuading you with false "reasoning." For instance, they might say, "Come on, you know it's fun, and you want to do it. You'll be perfectly fine, and nobody but us will ever know."
By the way, no, this has never happened to me, but my uncle told me it happened to him when he was around my age.
The scariest thing I know is how people do plastic surgery on them and then it looks super duper scary.