My ds was waking like this after he got better from being sick. It was a nightmare, I can't image it being since birth! My health nurse suggested (ds goes to bed round 730-8pm) to feed him dinner at 5, then a bit more (or dessert) at 6 - to help keep his tummy full and he wont wake as often. It didn't help that night, but 2 nights after (so - the 3rd night) it worked. I think I also discovered that a nightlight helps. Ds also wakes in the middle of the night crying, probably coz he sat himself up in his sleep. From there, I comfort him back to sleep (I rock or breastfeed). Sometimes he'll think its a game and want to play so I leave him to it and he either goes to sleep on his own or plays and then cries for help to go back to sleep...

Hope things work out for you! Hang in there!