I have mild kidney disease and nephropathy . my blood test shows low ionized calcium and my urine test shows increased calcium loss. i have symptoms of cramping all over. what is the treatment for this?

People with moderate/severe CKD, not mild, have low serum Ca but not high urine Ca. iPTH level needs to be done to rule out primary hypoparathyroidism as the cause which is in opposite with CKD patients who have secondary hyperparathyroidism. If iPTH is normal or low, hypoparathyroidism is confirmed. You need Ca supplement + active D3 to keep Ca around 8-8.5 mg/dl +/- thiazide diuretic.

Mild kidney disease should not lead to your symptoms. You should see a nephrologist or endocrinologist for evaluation and treatment. Good luck.