
32. A Little Fatigue
Energy levels also seem to diminish as we get older, but sometimes gradual fatigue can be a signal for something more serious. A Reddit user said her mother had declining energy levels for several years. She would become more tired and irritable.
She finally agreed to bring it up to a doctor who dismissed it as a sign of menopause or aging. But she would still become more tired as time went on. It was later discovered that her thyroid was shutting down over the two years that this had been happening. By the time she saw an endocrinologist, she had no thyroid function left.