Aloha - sorry to hear that DD is still not sleeping well - you must be beside yourself by now with lack of sleep
Anyway, if an article is on the cards why not a Norland nanny one. Testing to see just whether they are worth the money?
Or perhaps a trip for DD to the Norland nanny hotel? Could you bear to be parted from her for a couple of nights just to get some sleep?
I have a friend who used a maternity nurse who now lives in Catford who might be able to help, but she is now nannying for my friend 4 days a week. But possibly could do you for 3 days and nights? She's just finished working for Claudia Schiffer, so good gossip potential if nothing else
Failing that does a good google bring anything up?
Would finances stretch to a nanny for a day a week so that you could just catch up on sleep for a day? Most nanny agencies have nannies between jobs who will sometimes to part time short contract work to cover bills until their next job comes along! They might just crack the daytime nap for you too, if you are lucky.
Now it;s a long time since I had a baby, so do take this with a pinch of salt, but it does sound to me as if this is a separation anxiety problem rather than just a sleep one. If you lie down next to her in bed and cuddle, does she go to sleep?
In any event, I don't think you're being feeble - just at the end of a very long tether and frankly with no sleep we all run out of rope eventually