A Vitamin D deficiency can lead to bone softening diseases including Rickets, Osteomalacia, and Osteoporosis.
If you are having muscle weakness or dull aching pain in the spine, pelvis, and/or legs that persists or becomes severe you may want to consider a Vitamin D Test. If you are having symptoms such as constipation, decreased appetite (anorexia), dehydration, fatigue, irritability, or vomiting, it may be a sign of Vitamin D toxicity and you might want to consider getting a Vitamin D Test.
You might also want to consider the Vitamin D Test if you want to monitor your nutritional status or to check if vitamin D supplementation is working.