Pineapple, I agree with Natalie, I'd NEVER put my child on an SSRI. They are very powerful drugs at any dose. The FDA, finally, after getting many, many reports about SSRI induced suicide in children, held a hearing where parents told their stories. The FDA has forced the makers of 12 popular antidepressants, Prozac included, that can cause those under 18 years of age, to have violent and suicidal thoughts and actions. The FDA has been studying the same problem in adults, after getting countless reports from adult users and their loved ones. If your doctor tries to convince you that you'll be able to detect this in your daughter, before it's too late, he is wrong. The suicides come right out of the blue, often something that those who, fortunately, aren't succesful, attest to. There will be no warning.
Get some good therapy and get some physical testing done. Food allergies manifest themselves in so many ways, one is anxiety. Have you tried the very simple tool of removing sugar and caffeine from her diet? I mean, ALL sugar. It's not difficult to live without the stuff. Is there anything going on in your home that could be causing her to feel badly? Sometimes we, ourselves, don't see these things and need outside help to assess the situation. PLEASE do some research on natural ways to help your daughter. There is so much great information. Also, please learn how Prozac and other SSRIs "work". They are not safe drugs, especially for children. Most are not recommended for children at all. I'm still confused as to why Prozac is prescribed for childen. Most doctors only know what these kinds of drugs are supposed to do, not what they CAN do. Prozac will change your child alright, but the change could be something you won't like. Many people say that the drug changed who they were. It IS a mind-altering drug. It just happens to be legal.
Good luck to you and your daughter.