My wife is suffering from headache since  1+month long time continuously .I consulted to a neurologist and he suggested for blood test and MRI.I skkiped MRI part and gone for blood test only.in blood test report vitamin D was severely low(8 and minimum required was 20).I again visited to Dr and show him the report and he suggested for some vitamin D and calsium capsules for 15 days ..But no help till now she is still suffering.i also would like to mention that she complain  much pain after waking up and pain intensity decreases during day time and then again same intensity when she wake up Please advise what should I do