Hi there fantus
Sorry you are going through such a tough time.
It does indeed from what you describe sound like PND. And yes I believe it can come and go and some days are better than others.
The sleep deprivation can be a big part of it. I never realised it before I had PND myself, but the same areas of the brain control sleep and mood.
When one gets affected, it's rare for the other not to be affected in some way too.
It's good that your HV seems to be on the ball and she's coming back to give you support. That is very good news, as PND can be very isolating, making you withdraw and therefore can be hard for health professionals to "spot" you.
Why are you against medication? Yes, I agree that you should pursue other options first, but a course of anti depressants for say, 6 months could do you wonders. I resisted for too long and ended up in a very bad way - had to be hospitalised in a mother and baby unit for nearly 3 months.
I would hate that to happen to anyone else unnecessarily. You can, and WILL get better. It will take time, but gradually the bad days will become fewer and the good days will become the norm.
If you don't want to take meds, then I can highly recommend exercise - I know, I know, you won't feel like it. But trust me, it is the fastest mood lifter known - and there are research studies to prove it, it's not just "in the mind". I know you may think "how will I fit it in?" But you need to ask for support from your partner or a friend, to get some YOU time, it is not "optional extra" but a necessity if you have PND. Being chained to the kids will drag you down. Just an hour's break can do wonders.
Also ask for a night off at least once a week where DH does the night feeds. A good night's sleep will do you the world of good. If you b/feed, could you express enough for 2 or 2 bottles?
Umm, what else. Getting out to mum and baby groups, trying to have a laugh with someone in the same boat. This will help a lot.
The good thing about PND is that it relates to the post natal period i.e. it's not forever. You WILL get better, but you may need a bit of help to get through it in the short term. Do everything to help yourself but don't rule out meds just yet