I have morning diarrhea with cramps every morning for the past 12 days goes away after an hour or two each time. i'm a healthy active 53 year old ?

Further check-up: There could be many causes for this problem such as Irritable Bowel Syndrome, bacteria and viruses, substance abuse, stress, and reactions to medications. A more detailed history is needed and a stool culture may be advisable. So I suggest a visit to a clinic or Family Doctor. In the meantime probiotics and being careful about irritant foods such as spicy foods, caffeine and alcohol may help.