Should I see a doctor?

So I think I might have a concussion. i hit my head this weekend. This is going on day three. Yesterday I was super dizzy and nauseous and I didn’t even remember waking up and making my husband lunch for work. He told me I did but I didn’t remember. And today I feel a little better but I keep getting waves on nausea and sharp pains in my head kinda like a wanna be head ache and I feel a little foggy. I don’t know if I should just let it pass since I don’t feel as nauseous as yesterday maybe it’s going away. I hate going to the doctors for stupid stuff so I don’t know if this is doctor worthy.