I just turned 50 in June. That's when everything went wrong.  I am pre-diabetic and taking oral meds. I want very much to reverse the diabeties, with diet and exercise.  I also have rheumatoid arthritis  since 1990.  Just recently diagnosed with osteoarthritis, and Osteopenia.  I am having problems with my knees, which causes me not to exercise. Unfortunately, I am 236 pounds over weight and only 5"4"tall. Basically, I am miserable, I can't walk very far. I feel like I am 90 instead of 50,