Your reports indicate Urinary tract infection.
Nitrofurantoin is usually resistant to P. mirabilis, in vivo.
Next Steps
1. Do an ultrasound of abdomen (kidneys, ureter and bladder) to exclude internal cause.
2. Take Injection Gentamicin in the dose of 1 mg/per kg/three daily. If your weight is 50 kg then take 50 mg of Gentamicin, three times daily for 5-7 days.
3. Alkasol Syrup, 2 tsp, three times daily.
Health Tips
Take plenty of water.