It would be unusual to not feel some pain at the time of injury if you had broken a bone, however occasionally this is not the case.
Bruising and swelling could explain why your jacket is now too tight. A GP could examine the arm and tell you if there is a possibility of fracture (broken bone). They could also send you for an X-ray (if they felt it was required) to rule out a fracture, or simply reassure you if they felt it was simple bruising or swelling.
Answered by Dr EmmaJane Down.
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