Sorry OP. On the topic of stones….,had two in one week years ago and thought something exploded. Like a baseball bat to the back, no nausea. Took me to my knees, fetal position. The morphine couldn’t get injected fast enough. Yes, was massively dehydrated but not due to riding. Mr “Jack Black” the night before. Took me many years before I could even smell the stuff.
I hydrate like crazy on rides but still get cloud’ier urine. It’s hot here in Texas so hard to avoid the heat in the summer. I typically wear a 60 oz Camelbak and take 2 24 oz bottles on rides more than 2hrs. All that weight on my back sucks but no choice as I ride solo. Can’t just run into a store to refill.