Sudden spike in demand means you sell out of stock fast and you can’t sell to people who actually want your product (if you’re selling physical goods)
It gets hard to predict demand on a day to day basis
Suddenly getting hype for your product mean production has to be made more efficient to meet demand (which is fine on paper but the reality might be different depending on what you sell)
The good news?
Your business grows and you begin to see holes in your model that you haven’t seen before (opportunities for growth).
Having a post for your business go viral can be terrifying and awesome at the same time.