Hi Shaggy... My name is Chuck, and I am one of the Global Moderators here on Anxiety Zone. Welcome!
What you are describing is so very common, and classic.
My psychiatrist said to compare it to a rut or pothole in the road of your brain. As long as you keep driving over it (thinking about the anxiety/panic attacks), your brain will never have a chance to fill it in and heal it.
There is also a phase called "line-of-sight". Line-of-sight is good to remember is you are a motorcycle rider, which I have been in the past. An old buddy taught me about it, and it is so true. If you are riding along and you see a pothole in the road, your brain will automatically steer you right to where your eyes are fixed, namely the pothole. So when you see something in the road that you want to avoid, such as a pothole or what have you, you should immediately take your eyes off of it, thus changing your "line-of-sight".
The same holds true for anxiety/panic attacks. You need to do all that you can to stay away from them, their memory, stay away from that rut in the road (brain), and let it heal. Keeping busy, busy, busy, really helps.
Again, welcome to Anxiety Zone, Shaggy. The very best to you!... Chuck