Benicar Allergy Tests, Sored, Days of the Week, Coughs, Nexium

I started Benicar 2 years ago, at the same time I discovered I have acid reflux. I had a cough that wouldn't quit. The doctors continued to think, as well as myself that it was the reflux but after being on Nexium it should have stopped, but it continued. Then the allergy tests, since I am allergic to everything I started getting shots, again thinking that this is where the cough was coming from. I started to think it may be the Benicar, but the doctors said it was not a side effect. Recently, like 2 weeks ago my bp sored, I asked to be put on another medication. After 4 days, my cough stopped, I have to tell you the cough was so severe that my head would ache, my vessels in my eyes red and I would vomit from having such hash coughs, needless to say I was miserable and tired 5 out of 7 days of the week from being up at night coughing.