Hello, I m a healthy and active 60-year-old man. About two weeks ago, I had a sudden onset of strange symptoms: extreme fatigue, headache, ringing in the ears, slightly blurry vision, and frequent urination. The urination problem is nothing new, as I ve had prostate issues for years (a biopsy revealed no cancer). Some of these symptoms mirror diabetes, and that scares me. But there is no diabetes in my family history. I m 5-10 and 200 pounds. Any thoughts would be greatly appreciated. -- Bill