ds2 (1yo) still has reflux. Tbh the Gaviscon didn't help one bit, just made him constipated, poor lad. Glad you have appt with paed, ime the GPs don't like to prescribe anything that really works because they don't tend to be licensed for use on infants (in the UK anyway).
It is really really draining so I feel for you. Let me hunt for some sites that might help:
pollywogbaby has a good pdf file all about reflux and the things you can do to help it. Click on the 'Living with infant acid reflux' link underneath the picture of the slightly miserable (but not screaming) baby.
There's lots of information in this message on the infantreflux.org forum. I'm not a member of this forum but I am a member of the breastfeedingreflux group she mentions - if you are breastfeeding to any degree you will find the people on this very very helpful.
There's quite a good summary of the treatments for reflux on webGERD.com .
I've posted on reflux on mumsnet before and I probably put some different links in my earlier messages, so if you search the archives you could find out more.
Ds2 is currently on domperidone and ranitidine (brand name Zantac in many countries). Ranitidine/Zantac works really well on many kids although the dosing is very dependent on weight so you have to watch out for them growing out of the dose. Or some kids just stop responding to ranitidine altogether and have to go on to something that works in a different way.
Ranitidine made a BIG difference to us but his reflux is starting to get a lot worse and in fact I'm changing to a private paediatrician because it appears that the NHS doctor is dosing on the low end of the scale and I think ds2 needs a higher dose.
Having said that, lots of kids grow out of reflux before the age of one so I hope it's the case for your dd, ess, and for yours, lovinit. And in the meantime, hope some of the information in these links is useful for you.