shall i go and get an x-ray?

I got pushed over last night (by accident) and I fell, smashing my elbow on the ground. Pain straight away but I can move it, although it hurts when i straighten it fully. It swelled slightly, so i put some ice on it and took some painkillers and went to bed. The bruising showed up straight away. Today, my elbow is very very red and bruised. And its painful if i put pressure on my hand. I know its not broke, just slightly worried incase there could be a slight fracture? I am working tomorrow and i don't want to damage it anymore if it has a hairline fracture or something, but i dont want to go to a walk in centre as i dont want to waste there time. what would you suggest?