Reflux or silent reflux

What were peoples baby's signs of reflux? My baby is almost 4wks old and has been showing signs of reflux for a while probably from a week old but people have been making me think these signs are 'normal' for every baby. But my baby is sick after each feed during, after and upto a couple hours after. Also hiccups after most feeds particularly when being put down flat. Always spits up/ sick in Moses basket also sick on any movement. Lots of saliva and seems uncomfy during feeds. Still finishing feeds though. We give her infacol the larger dose as 0.5mls just didn't seem to help. Pace feed, sit up right during feeds and I've just switched from NUK to MAM bottles as NUk teats were a bit quick. I've been recommended colief to help with the wind as she is hard to burp, do people prefer infacol or colief? Due to get her re weighed this week! TIA