Hi,
How are you? Common
side effects of ciprofloxacin are stomach pain, headache, vomiting, diarrhea, stomach upset and restlessness. Rarely it can cause skin sensitivity to sunlight, rash, breathing difficulty etc.
Vaginal discharge with odour and back pain are the manifestations of UTI. Since how long are you using ciprofloxacin?
Feel free to ask if you have any more doubts.
Take care.