Calcium tablets mostly have 1000IU of
Vitamin D. This isnt enough for raising blood levels of the vitamin. Your levels are very low. It is important to restore the levels using vitamin D supplements. And then to take maintainance dose every month. Please share details of tablets you have taken already. Do NOT take vitamin D supplements without medical supervision as toxicity can occur with over consumption
Next Steps
Share your exact report. Were the levels measured in nmol/dl. Also what was the primary symptom for which you were tested? Because you said its not getting better.. What is the symptom not getting better? Hope to be able to help you with these. All the best.