"Missed fracture"

I had a fall and hurt my ankle, I attended A+E, it was a saturday night, i was there around 22:30, 11ish. I was seen fairly quickly and promptly given pain relief by the nurse as I was pretty sore. I was sent for an x-ray, i asked the radiographer if everything was ok, to which they replied, "yes, there is nothing broken". I was put back through to see the nurse, given a small support and sent on my way, with no crutches etc. I obviously took the hospitals word that my ankle was ok, and struggled over the next few days, i live in a top floor flat so was stuck, as my ankle got worse over the next few days, the bruising started to go up my leg etc.

Then on the wednesday i got a phonecall from the nurse who had looked after me, to tell me to come back as my ankle was broken and needed a cast, so i had to somehow get to the hospital and manage my stairs, luckily a family member could come and collect me.

Overall the way i was treated was nice, however i am just concerned that a fracture could be missed? What if my xrays had not been looked at again? Or what if this happens to someone else? etc. When i was shown my x-ray i could see the fracture right away.