There is a mild pain in her kidney areas for last 3 days. The excretion is proper. The pain is ranging from the lower back area towards both the kidneys. She has also increased her water intake but no use. She is having a severe deficiency of vitamin D3. Her levels were 6 till last month when she was tested. She is on the medication. Apart from that, everything is good. Periods are on time. Is this any sign of any severe health issue? What's the recommendation in terms of diet and lifestyle? Should we immediately see the doctor? Thank you