I hope you don't mean just because you're getting older that your body is shutting down. As far as I'm concerned my aging body now has high blood pressure and high cholesterol. Something most aging people get but I'm not shutting down.
Sorry, guess I should be more clear. I'm speaking of a person with a long term blood illness 35 years or so, who looks normal, but suddenly the body begins to fail. This has happened to alot of people with chronic blood and other ilnesses. With aging, I've seen some that lose control of body functions way before they actually have organ failure. I know there are slow signs such as body aches, etc. But can anyone tell me actual symptoms. I ask because I have had a blood disorder for years and have noticed some changes which I'm not sure is age or the disorder. doctors seem unconcerned and can tell nothing from test tubs.
kidney failure (your urine will darken and smell very foul). Black stools, indicating blood, liver failure, slowing heart rate, the skin can become thin and seep fluid, your body may bloat, have no desire to eat or drink, loss of bowel and bladder control, unresponsiveness, weakness, fatigue, low blood pressure, and the list can go on. A lot depends on what your problem is. Most of what I mentioned I have seen with my elderly patients who are passing away. Since you are on here, I assume you aren't near anything I have listed. You should really see your doctor though, have you done a search on this topic? Especially how it would relate to your particular illness.