Hey Joe...Absolutely, the meds can take a couple of weeks before they calm the little minion receptors in your brain. DO give it time. I understand the anxiety and panic attacks. You've been given great suggestions, so I won't repeat. If you can take a brisk walk during your breaks at work, you will find that you feel better also.
Meanwhile, just know that you are not alone. We're all in this boat, whether we're rowing or desperately trying to plug the leak=)
Dixie