The character of Sheldon Cooper was inspired by a computer programmer personally known to series co-creator Bill Prady. He is named in honor of actor/producer Sheldon Leonard and Nobel Prize Laureate Leon Cooper.
The infection is caused by bacteria. However, excessive use may irritate you. Soda also dehydrates you, and for proper urinary health you should be drinking lots of water, and also cranberry juice. Your physician was definitely right in telling you that it could have made the bladder infection worse.
Diet Sodas and Kidney Dysfunction. Diet sodas do not contain fructose or other natural sugars. As a result, you might think that you can avoid the negative effects on your kidneys as long as you avoid regular sodas and colas. A 2011 research article in the Clinical Journal of the American Society of Nephrology, however, indicates that even diet sodas have negative effects on your kidneys.