I Hit My Upper Side, About 8-10 Inches From My

I hit my upper side, about 8-10 inches from my armpit on the corner of a counter, 2 1/2 days ago. The pain is very intense but bearable. if I dont move a lot its ok but now all of a sudden im having muscle spasms in the same place, these are very very intens. I thought maybe I bruised or broke a rib, there is only a little bruising and no probelm breathing. I have no other syptoms.fever, dizziness, vomiting, headache, etc. ibruprofen isnt helping and I taking 800 mg. hot packs and ice help a little. anything i can sdo to get rid of the spasms.