Iwoke up this morning with a painful right arm. 4
may not be related...
No, neither the fracture ribs nor the lumbar fracture causes referred pain to the arm. I would think of a wrong posture as the likely cause based on the details provided. I would wait and see how the pain responds to aspirin. Incase you don't get better it would be worthwhile to see a doctor for clinical examination.
Hope this helps. Let me know if you need clarifications.