Tania,
The Zantac seems to have started to work now. My daughter is now 11 weeks old and she drinks around 750mls in 24hrs, I don't know if this is enough, how much does your baby drink? I too was at the stage of using an eye dropper to get her to drink.
Just a thought, what bottles are you using? I was using the Avent Bottles and after a suggestion by someone changed bottles, first I tried the Pur teats, she seemed to like these better than the Avent but still fussed around quite a bit. I now use the NUK Anti-Colic teats and she seems to like these the best.
Also, have you thought about going to a day stay? You can get a referral from your GP or your clinic to attend the day stay and there you can have qualified nurses observe feeds, etc. I am actually going to attend one of these if things don't improve. I don't know if you are in NSW or not but if you are, Karitane is where you go.
Please let me know how you go and I will let you know how I go, I am sure like me you are open to any suggestions.
Hang in there, things will improve!!!