Thank you all for the wonderful advice. It is much appreciated and certainly very helpful to hear views from people who have more perspective than me.
I am sorry I haven't memorised your usernames so will have to reply to comments anonymously.
I am based in the North-East - is anyone too?
I take onboard and agree with giving much thought to going back to work so I don't make any rash decision. It is certainly not what I had in mind before giving birth (I now realise I must have had a rather idealised vision of maternity leave) but it seemed a 'good' way to going back to my old self. I know she'll hopefully get better gradually but I am also concerned she will still be really young and would obviously prefer not to leave her in the care of unknown people if possible.
Someone mentioned PND. I am certainly happy to consider I may be suffering from it. The reason why I ruled it out is that I do feel fine when my daughter looks happy and content and I would have thought you can't jump in and out of depression so easily but this is perhaps misguided ideas on my part. What wears me down is that happy instances do not happen very often and I do find the crying and restlessness emotionally hard to handle at times. I thought all mums would have found their baby so unsettled distressing though?
Whilst I have nothing but positive things to say about the midwives I came across during my pregnancy, the delivery and the following days, I can't say I have been particularly impressed with the HVs I have met so far. When I first met my HV, she informed me that anything I say to my GP, HV, schools,etc will be recorded in the same file so if I ever start lying or whatever I say doesn't add up(?), they'll notice it straight away and social services would act on it. Now there would be absolutely no reason for her to think that my husband and I would abuse or neglect our daughter so I can only but assume this is standard procedure either in the area where I live due to a high incidence of cases (?) or across the country because of the recent child abuse cases in the media. While I understand they don't know us and have the child's safety in mind I nonetheless did find it rather offputting to say the least. To top it all, I found the first few weeks ok to deal with because my husband was around all the time (he took the whole two weeks plus additional days off) but I was a real wreck the first few days he went back to work - thought I would never manage on my own,etc so went to the baby clinic to ask for advice. While the HV there was giving me rather irrelevant advice ("have you thought of a routine?"), I burst into tears, and we are talking not a dignified sobbing but the real full waterworks, she ended up sternly telling me: "you do realise I am now going to inform your HV of this" as if I'd been a naughty girl that would need to be told off. Thankfully nothing came out of it - my HV mentioned looking for a new job elsewhere so she's probably not taking things too seriously/or assuming I am doing fine (?) - but I was expecting a phone call from social services all week! Anyhow, to cut a long story short, I have two strikes so far with them so I'd better be on my best behaviour! My HV also once suggested my face may be making my baby cry even more (!) so why don't I just bury her head in my chest not to aggravate her!! Not exactly the kind of things you want to hear when you already feel you are struggling...
To be honest I have found the whole medical support to be a bit of a farce- for a long time our concerns about her crying were dismissed as "your baby just has colic, you will have to live with it" and it is only after talking to 2 GPs, 2 HVs and a nurse that they eventually admitted that there may be something else wrong with her. That's when she eventually got diagnosed with silent reflux and got medication that did help but if not for this GP, my daughter would still be in pain right now....
Sorry for the rant!
To come back to my original post and all the wonderful advice you all gave me, I do agree I need more adult interaction and will try and make this happen, I will also put the going-back-to-work option on the back burner for the time being and will also look at getting advice from a lactation consultant.
I can see there are very mixed views on whether to shift towards formula or not. In an ideal world, I'd like to stick to breastmilk although I'd like to be able to express it so my husband can feed it to my daughter too so I get more time to myself. As my daughter was refusing the bottle when we tried, my HV told me not to push her too much with it in case she ends up preferring the bottle over my breast in the long run so I sort of gave up with the whole thing at this stage. Do you know if it is true though?
Someone left a link to another thread about having a 'different' baby. Thank you so much for it - I could have written it myself! - and it is certainly reassuring to know we are not the only ones.
As a final question though, whenever I decide to go back to work, in your experience would a high needs baby be better off with a childminder or in a nursery? Before giving birth, my husband and I were both leaning for a nursery as it felt structured, hopefully well monitored and gave an opportunity for our daughter to mix with many children but would such a big structure be too much for her?