My sister has had a urinary tract infection, kidney infection, upper respiratory infection, bronchitis and vertigo all within the last year. Her boyfriend is convinced her health problems (those mentioned above) are all because she's overweight (she's a good 100 pounds overweight) but I disagree. I think some people just have health problems. I know all those are a lot for one year but maybe she was just having a bad year? Am I just being naive?