Have no real advice as you seem to have tried most and recieved most standard suggestions. I can only say that I have been there , and dont want to do it again!
I can add that breastfeeding can be done at any time, for comfort, and if these babies are unhappy, let them be soothed. I am not adverse to dummies as well. Try a varity, so that tummy can rest for a while.
I have four children and three were of the nightmare varity.
1st child, lots of colic, and screaming for three months , calmed down, after that and slept for five hours a night until a year then slept well. ( lots of nightime driving as car soothed him!!!)
birth weight 9lbs, breastfed for 1yr, solids at four months.
2nd child, was my dream baby, slept five hours from birth , no colic, breast fed every three hours, got very fat and content. slept through at 6 months. ( gained 1 lb in weight first week after birth!)
birth weight 10lbs 8oz, breastfed for 1yr, solids at 6 months. ( thought I had cracked this baby lark..............ha ! how wrong I was....................
3rd child, colic at birth, 20 min cat naps during day 2 seperate hours of sleep a night, until 9 months old, when he then for first time slept for five hours. ( had bstrep infection , antibiotics dont help little tummys!)
fully breastfed, poor weight gain, ezcema from day 15 after birth. all day long scream , scream , scream.
slept through for 8 hours at 21/2yrs.
birth weight, 7lbs 3oz, breastfed 18 months, soilds at 6 months.
Has food and environmental allergies, which explained all behaviour.
4 baby (unplanned surprise/shock)
bad colic, record for non stop screaming in one day 11hours. went to cranial osteopath, which made things worse to begin with then improved. neighbours showed some concern at the constant screaming.
her scream was very high pitched , she broke the sound on our camcorder.
But DID sleep for four to five solid hours a night so I could cope better during the day.
colic stopped at four months, almost overnight. sleeping all night from 9 months. contented round child.
birth weight 7lbs 8oz, breastfed 2 1/2yrs, soilds 6 months.
If its any comfort to you i thought I knew quite a lot about babies, as i worked in the baby dept of a day nursery. However, they werent MY children. It seems that everyone elses babies were wonderful when i looked after them, and my babies were complete nightmares.
The grim dark days of my third baby still haunt me, we were both driven to our knees, with little medical support. There were days when I considered putting him in to care , just so I could sleep or spend time talking to the other children without the screaming in the background.
After a while I realised that this baby was in pain all the time, and nothing was being done about it. So i concentrated on his skin care, and finally worked out that he was terribly allergic to his food and environment. His sleeping at 2yrs was only due to his dnx of his allergies, and the changes we made to his food and environment.
We are lucky he is still alive, and well to this day, as his allergies are severe and life threatening.
sorry to waffle on, just to let you know I have been there and got the scars to prove it!!