@BimboJimbo
I'm sorry to hear of your troubles and can't help sitting here thinking wtf is wrong with your man?!
You've told him about the panic attacks whilst driving, and yet he still insists you drive for 15min to pick him up from work! Surely for such a short journey he could show an ounce of compassion and understanding and get the bloody bus!!!
I had a friend once that had a simliar thing to you - panic attacks whilst driving - and she went to her GP, who prescribed a small dose x 5 of Diazepam. The GP's instructions were to take one pill and let her body feel the effects (almost instant feeling of calm - her words), and then to keep the others in a pill bottle and carry with her when ever she was out driving.
The idea was for her to feel more relaxed about doing what ever the trigger for the attacks was because she had these pills on her. Being more relaxed helped with the anxiety, and to this day she has not had another attack, or taken any of the other pills.
It's all about a state of mind and finding a way to get your head around what is happening to you and not panicking, which just increases the strength and length of the attack.
You will find, likely, that during an attack you are hyperventilating (breathing too deep and too fast). This can cause your body to take in too much oxygen and trigger muscle cramps in your joints, fingers, arms and legs, it can also lead to feeling a tightening of the chest muscles and thinking you are having a heart attack - not so!
Breathing in and out into a bag will help ease this as you take in less and less oxygen and your breathing, body and pulse rate should return to normal after just a few breaths.
Another way to control your breathing is to breath in clench your fists and count to 10 and then breath out and release your fingers....
Like most things, you will have to find a way that works for you because we are all different. One thing that is generic though is that uncaring sod of a bloke that you're with who needs to be given a boot up the bum by you, or shown the door. You owe to yourself and your kids to stay mentally and physically fit and shouldn't have to put up with any nonsense from him because it's likely that's the cause of 99% of your continued anxiety.
I would, if it was me, show him your thread and tell him to wake up and realise what's to come if he doesn't shape up!
Best of luck to you and hope it works out OK.....