Very tired and upset stomach?

Ginger: You might wish to try ginger to quiet your stomach (ginger ale, ginger tea or crystalised ginger). Rest. Hope you feel better soon.

Many possibilities.: There are innumerable medical, nutritional and emotional conditions that include being tired as a symptom. These range from simple issues to those far more complex. A good checkup and blood testing would be a good starting point. At your age, could be heart related, mesenteric ischemia, even cancer.