My experience is years of frustration with my health, being overweight, low energy all the time, and it turns out that the lyme disease I had been treated for back in high school had survived and continued to plague me beyond my immune system's capacity to completely eradicate. It returned periodically for years, and only during periods of extremely low stress when I was out of school was I able to live comfortably at all. What tipped me off to getting treatment was comparing my physical abilities during high school as an athlete to my abilities up to this point in which I can barely engage in anaerobic exercise.