Get it checked no matter what, but I will add that I fractured my arm once after bailing on a BMX track jump gone bad.
There was a paramedic station nearby, so I pedaled to them to see if they could tell me if it was broke or not. Nah, you're fine, they said.
I pedaled six miles home to my mother, who is a nurse. Nah, that's not a break, she said. Put me in a sling and off to school I went the next day.
Started to hurt worse, had the school nurse check it out. She told me to get an x-ray.
Went home, mom agreed that it was looking worse, got an x-ray and yep, broken arm. Cast and a crappy summer for me.
So yes, there can sometimes be reasonable doubt about whether you've fractured a bone or not.
Of course, my other arm fracture there was no doubt whatsoever that a bone had been broken.
I'd get it checked.