Hi I Fell Down The Stairs But Only Remember Hurting

Hi i fell down the stairs but only remember hurting my tailbone really badly, a few hours later my left side hip and rib were in so much pain when laying down on the sides ad turning over and getting up, sneezing and coughing became painful. My lower back hurts when you put pressure on a certain area and also my stomache area hurts on and off, I kind of feel bloated/swollen on the upper stomache area. Should i go see a doctor or just wait for it to go?