Hello
Thanks for your query,based on the facts that you have posted it appears that you have stomach pain ,
Back pain head ache etc and have doubt to be due to antibiotic that you are taking for UTI.
The back ache and stomach pain may be primarily due to presence of stone either in kidney or
ureter and not due to antibiotics..
Please consult qualified
Urologist for clinical examination and get following basic tests done to confirm the diagnosis.
1)Routine urine test and urine culture done to find out the organisms causing this infection and antibiotics to which they are sensitive to.
2)
Ultrasound scanning of the abdomen to rule out presence of stone
In the mean while start taking broad spectrum antibiotics like Cefexine along with urinary antiseptic like
Nitrofurantoin twice daily and urine alkaliser thrice daily.Later on switch on to appropriate antibiotics as per culture report.
Ensure to drink more water to keep your dilute .
Hope this will work for you.
Dr.Patil.