My daughter has been showing symptoms of acid reflux for about 2-3 weeks. She is 5 weeks old. I have been looking at alot of ger and gerd sites and been noticing her symptoms become more prevelant than before. If I would have known so early on, i wouldnt have stopped breast feeding. She was constantly "gagging" and pulling off the breast. She would want to eat for 6 hrs straight and when I would take her off with in 15 min she would let out "pain" crys. Now we are on formula, our 3rd formula. I went to the dr a week ago and told her about her painful crys and pulling off the bottle and crying while  i was feeding, not to mention the gagging and regurtitation sounds i hear and somtimes dont see any "spit-up". She simply said then well if it continues it might be reflux. Thats when i cracked down on making sure i noticed this all ALOT more and how often it was happening. ALL THE TIME!!! Yesterday i called the dr office and left msg. My daughter is MISERABLE!!! and she smells like stomach all the time... today at dr apt she put my daughter on ZANTAC 75mg/5ml liguid. (.3ml 3times daily). We go for a follow up on this medicine in a week. Possible GI test if doesnt resolve. I am afraid to put my 5 week through the test. I read that with H2 blockers, an individual can become "immune" to them. Is this the safest drug out there for her and what is "better"

thank  you dana