I just had a UTI last week.  Unfortunately, it did start to affect my kidneys because I didn't recognize the symptoms early on.  Within hours of taking the antibiotics, I started to feel better.  I only took off one day of cycling.  It never dawned on me to ask my doctor about exercising.  I only took off that one day of cycling because I was in so much pain that sitting on a bike would not have been very comfortable.  But like I said, once I started taking the meds, I felt 100%.  Good luck...hope you feel better soon.
				
			 
			
		 
			
				
			
			
				Specialized Amira Expert WSD, Ruby Expert
Trek Madone 5.2 WSD, Bontrager Affinity 2 WSD
Trek Madone 4.5 WSD, Bontrager Affinity 1 WSD