Abdominal breathing symptoms and conditions

Hi I'm 36, with high blood pressure. I have been on 25mg/day hydrochlorothiazide since July 08. I went in for normal 3month check up and Dr tells me that my bottom number is to high, so she gives me yet another pill to take(yep you guessed it) Lisinopril. I filled the RX in the morning, by lunch time, I felt sick to my stomach, dizzy, everything hurt. I thought I had gotten the flu. This was just 2 days before my daughter and my mothers birthday.(both the same day) We had big plans after all you only turn 18 once. I put a smile on and went to the party, but it was living hell. My Fiance' noticed that I didn't start feeling bad until after I had taken that new pill. I only took 1 a day for 3 days and it took me over a month to feel half way normal again.