My little man was diagnosed with silent reflux at the age of six weeks. Silent reflux is not,as its sounds, painless but infact means that the stomach content comes up into the oesophagus and is the swallowed back down which means the stomach acid burns going up and down leading to pain.
The symptoms my son had (almost textbook) included backarching, food refusal (only occasionally) screaming catnapping during the day, waking screaming (quite often one hour post feed for my DS) a sour milk smell to his breath, more comfortable when upright and as I got more used to it I could sometimes hear him reflux. Also I found his breathing esp post feed was always a little mucousy sounding. comfort feeding. He always put on weight which is not uncommon with the silent reflux bubs though did get dehydrated a couple of times due to the feed refusal.
Some non pharmacutical methods of management include raising the bed (not currently reccomended in the sids guidlines but really helped my little man- you can get things to hold them in place etc, ?safe-t-sleep) holding upright (good during the day but not ideal at night) ivesting in a good baby carrier that hold them upright was very helpful for me, keeping bub upright for half an hour post feeds (also not good at night but i found DS's reflux better at night than in the day.
The following you need to discuss with your doctor:
Some reflux babys end up having a milk/dairy intolerance so if BF you could try a dairy free diet for a while. if bottle fed definately discuss with doctor before trying different formulas.
He also ended up needing thickner in his formula to help keep fluid down (but this does not work forevery baby)
He is on two medications Zantac and losec which helped heaps.
For my little man i would use mylanta (very small amount) when he woke screaming which seemed to help him resettle.
FInally I found the reflux association really great www.risa.org.au.
anyway all the best hope ihave helped