Hi yellowfeathers, I'm sorry you're feeling so rubbish. The panic attacks in particular must be very difficult to deal with. I had similar issues when ds1 was born (ds2 arriving in dec) and had struggled with anxiety and depression in pregnancy. What's on offer does depend on the resources of your gp surgery - some of them have counsellors in house, or even a psychologist or just use links with the council or SureStart.
I saw my gp and she arranged for a mother-baby link nurse (I hope that's the correct phrase) to speak to me, she came to my home every week just for a chat for about 6 weeks. It was really good to just have someone who would listen to me, and that may be all you need at this point.
Later on, when my pnd worsened, I was able to see a psychologist within the practice for CBT which was fantastic. I saw her for six months, but sometimes referrals can take a while.
also, when I was struggling in my first trimester of this pg, I was offered an appointment with a psych nurse via SureStart when I went for my booking-in and although I felt better & didn't take the appointment I can contact her at any time if I'm feeling low again so SureStart might also be a good contact for you if your gp can't help with a referral or the wait will be too long.
Your gp or psych nurse or indeed anyone that you speak to in this capacity will probably ask you to take the Edinburgh Test for Postnatal Depression. You & your dh might find it helpful to see how you rate on this - it might help him understand just how bad you're feeling as it doesn't sound as though he's really taking it that seriously if he wants you to 'battle it on your own'. Sorry no time to find it online right now, but if you google it you should be able to find a link or I can post one later.
There's also an organisation called MAMA which is to support women with PND and you could ring them, I know nothing about them but the number is 08451203746.
Having had PND once, and depression half a dozen times, battling it on your own is just about the worst advice I would give - the best thing you can do for yourself, him and your children is to seek help asap. It's a natural reaction for many people to think that sorting it yourself is the best approach but it sounds as though that just isn't working for you, it's only getting worse. You are at the prime time for developing pnd (4-6 weeks after the birth) but help now could hopefully stop it in its tracks so I hope you get some answers on Wednesday. All the best, AQ.