I had one of those too - and it was my second so it was totally unexpected. I feel your pain hun, it is the hardest thing to go through In my case it lasted about 3 months and eventually settled down. The thing that saved my life was a sling. With most babies just wearing them in a sling works, but I found with DS2 that I had to be walking with him in the sling for an hour or more until he eventually fell into a deep sleep. If I stopped walking too early he'd start crying again. It was still tiring but I dread to think what I would have done if I didn't have the sling.

The bath worked for us too - even if was only quiet while he was in it, the peace was so welcome. DS2 got a lot of baths!!

I think the thing is that this is a type of normal - not all babies are like this but some are. They do grow out of it thank goodness. I always suspected there was a food link but as it can take 8 weeks to get all the proteins out of your system it can take too long to find a link. Now DS2 has no allergies or intolerances so I guess it was just a temporary thing - or not related to diet at all I guess is another option.