With what you are describing, most likely you have nothing serious.
You should be fine. You need good prescription pain medications if OTC pain medications like ibuprofen or naproxen do not work, which is what I would try first.
However, having said all that, I would prefer that you should still be seen in the A & E to have x-rays of your chest, head, neck and shoulders etc to make sure there is nothing broken or fractured.
It seems unlikely that anything is broken or fractured but it is always good to be safe rather than sorry.
It is very unlikely that you would be having any bleeding or damage in the brain because if that were the case you would have most likely lost consciousness or had bleeding from the nose or ears or clear fluid coming out from the nose or ears.
Let me know if you have more questions.
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