4 week old fighting sleep off for up to 9hours.Help appreciated.

[Tracylou1988]

I'm new to mumsnet and this my first baby and she's 4weeks 4days old.At the very start she use to sleep for around 3hours and then would be awake for 2hours until she went down again.Recently she can wake up 2-3 hrs,rarely does she sleep 4hrs. But all of a sudden she won't settle for up to a good 9hrs:(.I try everything,nappy change,feed, burp and finally cuddles.Soon as she's asleep I put her down and she will wake up either 10 minutes later or straight away.
Sometimes I rock her in the Moses basket rather than pick her up or try the baby gym but soon gets bored.Im at a loss.Ive tried infacol for wind and gripe water.Has anyone had the same or is currently experiencing the same?Any help would be appreciated.Thanks.

[stargirl1701]

Yes. DD1 was like that. It was silent reflux.