I have high cholesterol. I am sensitive to Crestor and Vytorin. I take Simvastatin 20mg. I take Lisinopril 20mg i x day plus Amlodipine 5mg. X 2 daily for high blood pressure. I was taking 40mg. Simvastatin before the FDA warnings came out about the dosage combination with the Simvastatin . Current meds not working effectively. Advice?