I’m surprised that your regular GP doctor is not willing to prescribe an antidepressant for you regardless of when or why you have anxiety. If you stay the course with the antidepressant that you are now sampling, you will likely need several follow up visits at least in the short term and I would think it is easier to get into to see your GP doc than your back surgeon. Antidepressants are usually prescribed by GP doctors or a Psychiatrist. I don‘t quite understand what your doctor meant when he said a “panic attack” can leave an everlasting impression on your brain. True, you probably won’t forget it, but I don’t believe they cause any “brain damage”. If you are experiencing “situational anxiety”, then your anxiety may go away when the situation you are in changes. If your anxiety is due to the back surgery causing quite a sudden change in your life and daily routine, then once you heal from that and get back to your life as usual, your anxiety may subside. Pain also causes anxiety and I would imagine that you have some pain recovering from the surgery. You might only need to be on an antidepressant for a short term until you are completely recovered from your back surgery. Also, if you are only going to stay on an antidepressant for the short term, Effexor (Venlafaxine) may not be the best choice, as it has the shortest half life of all the antidepressants and has been associated with some very unpleasant withdrawal symptoms when stopped and even when weaned off slowly. Prozac has the longest half life, so you may want inquire about sampling that one instead.