Benecar hct symptoms and conditions

I am a 56 year old woman and my doctor started me on 10 mg Lisinopril in March. Within 24 hours of starting it I developed a very annoying cough. At my next doctors visit she told me my bp was not down enough and wanted to increase the dosage. When I asked her if the cough could be from the Lisinopril she gave me some samples of Benecar HCT. The only problem I had with that was muscle weakness and some palpitations that went away after a few days. When I got the prescription filled I found that my insurance didn't cover it and it was quite expensive so I called my doctor back and she wanted me to try the Lisinopril again at 20mg and see what happened. That very same night the cough came back with a vengeance, along with dizziness. I decided to try to tough it out but after ten days now the cough is so bad it's unbearable. It keeps me up at night and I cough till I gag and cry. On several occasions I have coughed until I vomited. I couldn't take it any more and stopped taking it two days ago. I called my doctor today and she told me to stop taking it and now we're going to try Norvasc.