Quiet new born baby becomes actual baby and cries shocker! I guess Olivia couldn't stay quiet for too long. It's tough hearing your child cry and not always know what to do, feeding, holding and rocking and all the other tricks tends to work but quite often it's a short term solution. Checking up in books, websites and asking around it's nothing worrisome at all, just regular baby grizzliness.
Weirdly the crying is a lot less during the night (although fairly late), not that it helps as the evenings are draining enough.
There is something amazing about managing to calm down a crying baby though, it's a fantastic sense of achievement.