Toprol-XL and mitral valve regurgitation

I am 29 and i have been taking Toprol XL for 3 yrs. now and i was amazed when i seen what everybody had to say about this med. I had been on other meds for Anxiety, Panic Disorder. I was on Paxil CR and also Klonopin. I had gain 70 pds in 5 yrs and thought this is from the Paxil so i decided to come off of that and the Klonopin. Well, I'm still taking the Toprol XL and i am still haveing problems and it's just like alot of the same things i have read from other people on here. I am concerned about this med. And i hope everyone can find something that works great. If any one has any good luck with a different med please post it. I'm looking for a different way to deal with the rapid heart rate without all the nasty side effects of Toprol.

I took 25 mg of Toprol for the first time today for high blood pressure and a high heart rate. I also have mitral valve regurgitation. Already, I can tell that I'm in a fog, very tired, and my chest hurts. I even took a nap around 4:00 pm today, and had a terrible dream. My hand and feet have been freezing cold too. Is it safe to stop taking this medication, since I have only taken 1 pill? I want to call my Doctor tomorrow. Thanks!!!

Jeannie