Have your Vitamin D checked. I also heard that tanning beds do not give you the Vitamin D so not sure about a sunlamp. Coral Calcium has Vitamin D3 so it's a good source as well as most fish, especially salmon. Vitamin D deficiencies can cause serious problems. Mine was just tested at 40 and it was 11.8, well below normal and it took months of arthritis pains, gout, paresthesias, four doctors, etc. for one doctor to say, "Haven't they ever tested your Vitamin D?