My doctor prescribed this medication for a sinus infection. Usua...

My doctor prescribed this medication for a sinus infection. Usually have been prescribed a Z-pack for this by my regular doctor. I took this medication right after returning home about middle afternoon. I was awake untill 5 am went to work and took again in the AM, with my regular morning breakfast of coffee and toast, didn't eat much during the rest of the day, not hungry felt like I was on diet pills (heart palpations, etc. ). My headache which usually accompanys sinus infections got worse so I went to bed early because it was really a very bad headache and at 5AM I woke up in a cold sweat and started throwing up. After feeling the same at 8AM Since it was Saturday I opt to go to Urgent Care. Was seen by doctor by 9:30AM. By this time I was still throwing up, horrible headach, and cold sweats. My blood preasure was at all time hight 160 over 100. Needless to say this doctor gave me the Z-Pack and he asked to see me again on Monday morning at which time my blood preasure was back to normal 116 over 80. I will never knowingly take this medication AGAIN! Please note: 1. I have never had high blood pressure, actually it is usually low. 2. When taking medications I will always drink more water than I normally do to help just to flush out my body, especially when I am taking sinus medications as they usually "dry me out".