I have heard so many patients that self-diagnose using WebMD, TV commercials, or even to each other.
Each person ages differently. We can compare notes with our friends, and find similarities all we want with family.
But the reality is, that one's body's health is different than what another's body's health is and feels like.
This is a link that will help assist you in what and where to find the correct, up-to-date information that many people should know, but aren't informed about:
Also, look into the NIH blogsites for additional information:
All Species Nurse