I contracted staph from a hospital and was diagnosed with a MRSA infection. I took a course of antibiotics for 10 days and was feeling better until I completed the antibiotic course. Then my joints, back, legs, head - you name it - HURT. I have not slept, other than an hour here and there, in a week. Should I request another antibiotic or go to the ER? Also, should I call ahead and say I may have an infectious disease? I need to do something within the next 24 hours because the pain is off the chart.