Hi, I am not feeling well, for almost 2 weeks now, sore throat, runny nose, fever but then I followed a prescription for one week including levofloxacin 500 mg, paracetamol, atarax and cough syrup. My flu and sore throat have almost subsided but I am feeling sharp headache and pain in legs today :(.kindly help. Age: 19, male, 72 kg weight, 5 ft 11 in height.