urinary tract infection
"I was prescribed Bactrim for a UTI. Everything was going well on day 1-2, on day 3, mid day, I began with chest tightness, noticed difference in my breathing. Felt as though the end of my lungs/rib area was extremely sore. It sent me to the ER as I was uncertain what could be causing it. CT scans, tests, and 3,000 out of pocket later, no results showed. Which I'm thankful! they eventually chalked it up to the medication. I immediately stopped it and went back to normal after a few days. Weird stuff! I gave it 5 out of 10 because although it was only three days, the bactrim cleared up whatever it was! Potent stuff"