Hi Pumble - I've been reading the thread on and off but haven't posted much. You do actually sound more 'in control' now than you did at the beginning of the thread, and you should be very proud of yourself that you DID got to the GP and you DID ask for help.
I know that the meds can take a while to start to be effective, but that once they do kick in, they are extremely helpful (not from my experience, but from what others with PND have told me).
Hoping that Pumblett 1 continues to feel better, and glad to hear that Pumblett 2 let you get some rest.
I'm in the throes of sleep deprivation (although not to the extent you are) at the moment as DD has not slept through the night for the last three months. She's on the point of turning 2 and is very much already into the 'terrible' phase, with saying "no" to almost everything I ask, ignoring me, having tantrums and waking at 2,3,4am and then yelling to come into our bed. Unfortunately this week I had two exams at college and I'm sure I've done badly as I was so tired I could barely read the questions, let alone figure out what I was meant to write. Oh well, there are always retakes!
I'm told "this too will pass" so I am just holding on to that.
Did you ever establish whether there were and MN-ers near to you who might be able to help you out, even if it is just someone watching Pumbletts 1 & 2 for an hour or so whilst you get some sleep?