i used to get kidney pain a lot. I would be in urgent care every few days! Each time they would test my blood - nothing ever showed and also urine which sometimes would show things other times it wouldn't. They would throw antibiotics at me for phantom urine/kidney infections. Sometimes they would work sometimes they wouldn't. It was just the Lyme acting up for me. I just drank plenty of cranberry juice eventually it moved on. It cycled for a few months though before it did go away.
My experience was very similar with the doctors in regards to my kidney pain. I started to suspect yeast being related, and they couldn't help me with that either!
My kidney tests would come back normal. Urine would sometimes show very small blood, but they really didn't know about
However, they didn't throw antibiotics at me. They didn't help me at all (saw multiple doctors). I was forced to try to figure it out myself and self-treat.
I was on antibiotics twice for strep in one year. One of those triggered my kidney pain/episodes to be even worse! I was unwell for a month! (This was before I self-treated.)
Kid#1: Extremely sick for several years, very difficult to treat, but much better lately!
Kid#2: Very sick now despite being treated for years, very bad year
Kid#3: Doing great, minor relapse, but great again (ironically had least and shortest treatment)!
Me: Adv Labs positive 2016 (suspected I passed to my kids) - not as sick as others, mostly battling fatigue, kidney, heart, and yeast issues