Warning Signs Lactose Intolerance. This problem is caused by the deficiency of the enzyme, lactase, which aids in the digestion of milk products.
Less milk means less calcium.
Hidden Fractures Plague One Woman in Three A persistent low backache, or sudden localized pain, could be a warning sign of compression fractures in the vertebrae of the spine. But for many, these breaks cause little pain, and may go undetected for years. For some, the only tip-off is a noticeable loss of height, which can reach as much as 8 inches.