Is This Reflux?

[MamaK]

Hello,

I find myself here coming for advice.

Initially we thought our daughter Seven had colic or severe wind issues. After trying a few different natural remedies as well as cutting out heaps of stuff from my diet, we noticed nothing had changed, in fact, she was getting worse.
This is what Seven does:
Will suddenly wake up and scream.
Constantly grunting and squirming.
Vomits - not that it bothers me but its bigger than your everyday baby spill.
Arches her back.
Sometimes fusses at the breast and pulls off then screams.
Sleeps better in her sling.
Has hiccups A LOT.
Burps and it sounds wet, like she is going to vomit.
Coughs.
Gags.
Sometimes splutters when feeding.
I can even sometimes hear the acid coming back up her throat.
She likes to feed when she feels pain, but it makes it worse.
She gets snuffly, like she has a cold almost, but she doesn't.

We are currently using mylanta before a feed and sometimes even in between, but, because she feeds so often, I really can't see using this as a long term thing. It only helps sometimes.

We are off to the Dr today and I am planning on asking for some Zantac. Do you think this will help my baby girl?
I thought all these symptoms were wind related, but after paying close attention over the past 4 days, I think its reflux - not severe of course - but bad enough for her to scream in agony and that is something I just cannot let my daughter experience if I can help it!

Thanks in advance for any suggestions.