kidney stone with calcium deficiency

Calcium citrate tablets may increase one's risk of future kidney stone formation in people who have a history of kidney stones. However it is not known to aggravate pain in existing stones especially if there is a calcium deficiency. I would try to get the calcium from foods and reduce the supplements once calcium levels have returned to normal.

Shall you suggest a best gluco meter for daily use

Any glucometer sold at the local drug store or online is fine. Just ensure the strips are easily available.