definitelybeholderrpgideas:

Unspoken Tips of D&D #2

Working and communicating with the DM is not only allowed, it is encouraged. It will allow both of you to pursue your story plans the way you want, without conflicting with each other, which is MUCH better than trying to make the story go your way without telling anyone your plan.

It also allows you, as a player, to get the most out of your character. Your human wizard is another race in disguise? Secretly related to the villain? Literally ANY major secret your character has? Tell your DM! DMs are great at keeping secrets, and when they finally reveal it, it will be In such a way that you’ll be glad they did!