Oh hugs Emma999, that sounds so very stressful and difficult
have you got support from family, friends? Anyone who could take LO out for a while to give you a break?
It is normal in some respects that babies cry, it is after all their only form of communication, but to cry all day and barely sleep suggests to me that she may be in some sort of discomfort. Does she show any signs of reflux?
Reflux 101 - General reflux information Is she breast or bottle fed? What are her poops like? Does your gut instinct tell you she is pain? If so you need to keep going back to your doctor/health visitor/paediatrician and seek another opinion if you do not feel they are taking you seriously. For your sake as much as hers
it is super-stressful and exhausting looking after an unsettled baby and it is important that you are taking care of yourself too.
What have you tried for getting her to sleep? Will she settle in the pram, car or bouncy chair? What about a sling or wrap? They can be lifesavers for unsettled babies. There are also some tips here, relevant for reflux but also good for any unsettled baby:
Sleep and the reflux baby.Hope you find something there useful