Toprol-XL and tiazac

I suddenly had high blood pressure. I was put on a heart monitor for 21 days because I was experiencing frequent palpitations. I was given 25 mg Metoprolol ER the genic for Toprol XL on June 6, 2008. I had the usual symptoms extreme fatigue, headache, constipation,swelling, weight gain for the first month. I am 59 yrs. old.
The second month I started to have horrible nightmares, and headaches that would not go away. On Aug.12 while driving home I started to hear voices, had blurred vision and hallucinations. I was driving fast and screaming to make the voices stop.. I ended up in a parking lot. I was crying and for a minute I had a bit of reality. I called the cardiologist office and told the nurse what was going on. She said to immediately stop the meds because I was having a rare serious side effect. I sat crying for awhile and was able to call a friend to pick me up. I stayed at home for 4 days. The entire time my hands shook and my headache was horrible. It was one week before I was able to function properly.
I called my pharmacist and she told me that this drug affects the central nervous system. 2 % of 100,000 people have this side effect. I told her that it was not written on my paper with the prescription. She said that because it is so rare they do not have put it on. She printed out the side effects for me from her web site. A site that is only accessible to pharmacists or Dr.'s. My Dr. wants me to try Cardizeim now and I do not want to because I am afraid. I told him that the BP was down to normal but he still wanted to because of the palpitations. I was given the option of the Cardiziem or seeing and Electrical Man at the Cardiology office. As of yet I have not taken the Cardiziem. This is the first time I have read this web site and I hope that this information may help someone. I finally feel good again except for the rapid heart beat and glad to be alive.