i used to suffer from these and have been on medication for years. I came off my tablets each time I was pregnant and the fear of having an attack would bring one on.
In desperation one night, trawling through the internet for some help, i bought an e-book. It changed my life.
The main idea was that once you fear an attack and you get that dreaded feeling in the pit of your stomach, the dreadful cycle begins.
In order to beat it, you have to (and it's not easy at first), welcome that small feeling. as soon as you feel it coming- instead of thinking "oh no" think "Yes! I'm going to have another attack! Fantastic, here we go!"
Then, often, the feeling subsides instantly - because you haven't panicked!
If it does continue however, as the feeling grows, you then think (I actually said it out loud) "Come on then. Is that it? Can't you do any worse than that? Come ON! MORE!" almost as if riding a roller coaster. But you must mean it - you're not just saying the words, you must WANT the attack to continue. By the very nature of panic attacks, ie: worry - panic-worry-panic, the attack cannot continue because you've broken the cycle.
It is a very long book, with info on what is happening during the "flight or fight" mode, and I have tried to put it briefly. I hope you understand what I mean!
I hope it is some help to you both as it really did help me.
Warmest wishes to your little boy and a big hug x