Pain can be referred from other structures outside the hip joint, meaning that while the hip hurts, the problem may potentially originate elsewhere. Inflammation of the sciatic nerve as it arises from the spinal cord in the back can cause hip pain, especially if the L1 or L2 nerve roots are involved. Other types of nerve inflammation may manifest as hip pain, including pain arising in the lateral femoral cutaneous nerve of the thigh, which is often inflamed in pregnancy . Pain from an inguinal or femoral hernia may also cause pain that is felt in the hip.
The body also wants to shut down calcium absorption from your intestines. It does this by limiting the amount of Vitamin D in your body. Thus, if your body determines that your calcium is too high... it can decrease the amount of calcium that is absorbed from your intestines by decreasing the amount of Vitamin D available. If your Vitamin D levels are decreased, you can't absorb so much calcium from your diet. This is a protective measure. It happens by taking the long-lasting Vitamin D-25 and converting it to Vitamin D-1-25 which only lasts a couple of days in the blood.