Replying to What is a “serious crash” according to helmet companies?

Yo so I just got a mini concussion with my new smith maze helmet on Friday (still have a head ache today.) I didn’t commit to a trick all the way and landed landed on the left side of my head and my left shoulder. It was Soft snow but a flat landing.

In the past I would’ve not worried about this but I keep hearing you’ve gotta replace your helmet if it sustains a major impact or shows damage. Helmet looks fine. Idk. Not sure if this what a major impact is honestly. What do you guys think is best? And when do you guys replace helmets?