Talk to me about acid reflux.

Not sure if this should be in here, or in health.

I think my little one has acid reflux. She is 1 month old and has the following:
- hiccups 2 to 3 times a day
- bubbling milk at the mouth
- grunting constantly
- unhappy / crying when on back
- arching back when lying on tummy (on our chests)
- spitting up milk while feed (drippling)
- occasional sick
- occasion burps that sound wet / like sick
- inability to settle in the evenings
- licking top of mouth not long after feeds (think dog eating peanut butter)
- constant need to suck which has suddenly disappeared so unable yo settle
- thrashing around with her head
- trying to kick / turn herself
- sounds congested like a blocked nose
- coughing a lot to the point she sounds like she almost chokes.

And today she's started to refuse normal feeds and be sick / choke when lying down (even with the crib slightly raised at the head)

Got a GP appointment later today but I'm struggling, she's so unsettled.

Symptoms starts from birth (bubbles, sick) and have progressively gotten worse (unable to lie flat, wet burps etc) until last night/today (choking) when I simply can't take anymore and Im pretty sure she feels the same.

Health visitor previously said "it's just a baby thing" kinda statement and to remain with infracol.

Could it be acid reflux? How can I best settle / soothe her today?