hi yes caffine can cause this and carbanoted water and cholate and milk and apples for me the kidneys are just to weak well for me try gatorade thats good its really hard to stay away from all that i dont think ive had any in allmost a yr they just told me i cant have the three c's ever again caffine etc. ive had my problem forever all that stuffs causes bactria i had 6 infections in one yr oh my did it hurt so much pain but i hope some of this info helps i hope to see you in the chat room some time to talk more take care