When I first started getting panic attacks they were terrible. I didn't know what it was, since I had never had a full blown panic attack. I thought, of course, "It must be a heart attack!" I mean, my heart felt as if it were going to burst out of my chest. So I went through Cardiologists and a few hospital visits. Then I thought it could be GERD (Gastroesophageal Reflux Disease) since the symptoms kind of matched. The Gastro threw meds at me and I had side effects. They ran an Endoscopy and other tests. I had a small hiatal hernia, which they said is relatively normal. My anxiety was through the roof by this time since no one could find anything wrong!
Enter in a GP telling me that she thinks it is anxiety. I had been checked completely. My blood was drawn so many times and checked over. I am saying this because without the SSRI's and medication, my anxiety was through the roof in itself. And finding out it is anxiety, while a relief, continued these physical manifestations. I couldn't live like that, so medication is/was needed.
I started out on Lexapro - Was bad for me. Went to Cymbalta and it gave me anxiety at first a bit, especially during an increase. I've been on a handful of others since. What you need to realize is that there is many adverse side effects... initially, anxiety being one of them. Is your Psychiatrist prescribing too high of a dosage? I don't know. I can't answer that. But no matter what happens in the future medication-wise, just remember that these side effects will almost always occur while your body gets used to the medicine. For me it did. Maybe ask for a benzo like Xanax. When I first started Cymbalta I had terrible nausea and stomach aches, and the Xanax was a Godsend.
Best of luck!