urinary tract infection
"Knocked UTI symptoms out effectively after the first 24 hours. However, the side effects were not pleasant and were very noticeable: headache, nausea, dizziness, light-headed, weakness, sweating, dry mouth, excessive thirst, tiredness. I'm on day 3 and have asked the doc to switch me to something else so I can function better at home and work. Trying Cipro. Be sure to drink water constantly when on Bactrim DS."