I would second the comment from stress-head about reflux. My second baby suffered from silent reflux and I have always said that he seemed like he just didn't want to be here. The screaming was agonising and was not the crying of a baby who was hungry or tired or unsettled. One thing that also really pointed to reflux was the fact that he didn't enjoy feeding (bf) and didn't get that sleepy milky heaven but just screamed more, he also hated lying down, being in his car seat, actually everything made him scream! We were finally referred to see a paediatrician at Kings for a reflux diagnosis and meds. In addition I thought that he wasn't a "burpy" baby until I was taught some very good winding techniques by a midwife and I think working those burps out of him after every feed also helped a lot. It took him until 6 months old before he really settled down. At 12 months old he is now the happiest, most chilled out baby possible and the nightmare of those first 6 months has faded into history. Unfortunately though knowing that it will improve over time doesn't help whilst in the middle of it (I actually wanted to hit everyone who told me that babies generally grow out of reflux by 10 months old). My advice is keep speaking to your GP/midwife about it, get referred if possible (be demanding) and grit your teeth.
