urinary tract infection
"Do not take this medication.I feel as if I have poisoned myself. I was prescribed to take one pill, twice a day, for 5 days. After the 2nd dose I began vomiting and had an awful pounding headache. I called the doctor to ask if I could be given something else and he said no and to continue taking the medication. After the 3rd and 4th dose I am not taking it anymore. I feel nauseated constantly, my body aches and I feel like I am sick and the worst part is my chest hurts really bad. I have a constant pain/pressure in the center of my chest and if I laugh or cough it feels like my entire chest cavity hurts. I have read that is one of the more serious side effects and it's freaking me out. How can an antibiotic make your chest hurt like that??"