Yes the UTI clearly must have been there for quite some time to reach the kidneys, despite the fact that they take a urine sample every 3 weeks at my midwife appointment which gets sent off. They would normally call me if the samples come back with anything - but no, nothing! So either they've not read the results properly or it wasn't picked up by the laboratory. It was clearly visible on the ultrasound I had today however, especially the kidney infection.
As for the stone(s), they'll never be able to know for sure now because the ultrasound came too late to show them, but I was admitted with all the usual symptoms, I had severe pains intermittently about every 45 minutes or so getting increasingly stronger until that last one where I honestly can't imagine even childbirth coming close to that sort of pain, it was absolutely horrendous. In between two of these bouts of pain, I went for a wee and both times was like the floodgates had opened up - and afterwards the pain just disappeared. Kidneys still tender of course, due to the infection, but no more sign of the horrific pains (which I was offered morphine for).
I hate being left not knowing for sure, but my symptoms don't even come close to being just bladder and kidney infection. The consultant obviously won't be, and can't say that it was stones for certain - because there's now no physical evidence left.
As for BH - will be interesting to see if I get any, I'm 35+2 now so maybe I'll get some soon - I'm just very curious how they feel ! I guess it's possible to miss them if some of them are as mild as you describe and you don't know what to expect?