Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
Get a USG scan of the lower abdomen done. Many times calculus present in the urinary tract
may lead to this kind of problems. It may not get reflected in urine or blood tests and it will not get cured with antibiotics.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you. You just need to contact me on this below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.