If your wee smells funny, you have a UTI
I find the raw apple cider vinegar works a treat so long as you get the ACV from the mother apple.
It takes it away really quickly, but I would use it for a few days, while continuing to drink ACV, and it might also be worth a visit to the doc to check out why wee is dark when you drink loads.
Do you sweat a lot. i found that before hrt I sweated a lot even though I drank water and got UTI's cos of the sweat, there was loads of it.
I never bothered changing the sheets during the night, cos I would only need to keep changing them a few times a night and I couldnt be pestered with that, would rather use a sleeping bag, much easier to wash too.