Non-contrast ct report said increased density corticomedullary junction bilateral kidneys-suspect for tiny renal caluculi. should i worry?

Let me explain: If the stone is the problem, i think this not a major issue, the stone some time could go down by itself or by using (lithotripsy technique). I would recommend you take of it

Need workup: I would be concerned about nephrocalcinosis. A disorder characterized by calcium deposition in the kidney. It commonly is associated with excess calcium in the urine. Medications may cause this including futosemide, vitamin d. Small stones are unlikely to be present at the corticomedullary junction since this is an area within the kidney tissue and not the collecting system.

Consult doctor: I would recommend consulting a urologist or nephrologist as this represent abnormal accumulation of calcium in the kidneys.