Hi, It is less likely that blood glucose and blood pressure fluctuations to happen, after 3 years of initiation of statin therapy. I would advise against stopping statin, without proper evaluation by a medical expert. The use of statins in diabetic and hypertensive patients have shown positive impact in reduction of cardio-vascular events in many studies conducted world-wide. I suggest you to consider seeing your treating physician, to look into the current medications prescribed for diabetes and hypertension. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Ayesha Shareef, General & Family Physician