Ingrown hair or something else??

Hey everyone. So, I shaved my pubic area last night in shower, and when I woke up this morning, it was really painful on one side. So, when I went to go see why it was painful, I noticed a bump that can be felt in the skin. I’m worried that this could be something dangerous. It’s never been painful or anything before last night. I have been shaving my pubic hair for years, and have never had this problem. Not sure what to do. Anyone else experience this?