Celexa and new doctor

I was prescribed this drug earlier this week as I suffer with GAD (generalized anxiety disorder) I told my new doctor that I've tried other antidepressants for my disorder and found them to either make myn anxiety worse or I get nauseous. He told me to take 10 mgs. to start and take that for a week and then increase the dose to 20 mgs. The first day night I took this drug I awoke at 4 am wanting to climb the walls. My anxiety was so bad I couldn't take it. I took 15 mgs. Valium but it did nothing for me. I took every herbal thing I had in my cabinet in hopes of getting rid of the horrible anxiety.....it was unbearable and I was on the verge of panic. I will NEVER take another one of these pills. I am so tired of doctors who write prescriptions without a care as to how it is going to affect their patient. It's not them that has to deal with the side effects. And I was told to continue taking the drug as the side effect will go away. He's nuts. I can't function with anxiety that was that bad. I give up!