I had been on benicar for about 4 years and doing well. Recently, I asked my doctor is there was something that was comparable to Benicar. She changed me to Losartan. When that was giving me trouble, we went back to benicar. Now I am miserable. I am dizzy every day and my pressure is remaining low such as 90/50, 80/60. Could it have affected me differently the second time around?