Among the many answers submitted, many of you guessed the correct answer - lead poisoning. The first person to guess correctly was patches2. Congratulations! Almost as many people guessed lyme disease as an alternative diagnosis; other common responses included syphilis and diabetes
I know most thought lead and then went with Lyme because of the reporting to CDC but I guess it should not be a surprise with all the info on lead poisoning that came out that it would be a reportable disease.