Today I fell from the 2nd step from the top of a 12' ladder and landed on my right shoulder, wrist, and top right side of my head, I went to the ER and was told there were no breaks after x rays. The doc prescribed hydrocodone which I have taken twice now in the last 7 hours, My son and mother notice that my skin is starting to yellow a bit. I hope this is a side effect of the medicine and not a result of a liver injury. What should I do to determine which it is? How do I prevent it from getting worse?