My DD was diagnosed with reflux at 2 weeks. She has silent reflux so her spitting was not too bad. She was put on Zantac, then Previcid, then Reglan. Yikes--I agree about the Reglan. It made her absolutely crazy and she was up even more at night than before she started taking it. I threw the bottle out and told the Ped we wouldnt be taking that. I didnt know about the severe side effects, but after her being on it for just a few days I can believe it. Now she is only on Previcid, but she still has major sleep issues that we attribute to the Reflux. She cries out A LOT in her sleep like she is in pain- this in turn keeps us up and very tired!! We had her tested last week for a milk allergy and everything came back fine.

We are losing our minds after not having sleep for a whole year. I had taken DD off all dairy (she had been on hypo formula) and put her on rice milk. Didnt notice a huge difference. I decided to put her back on the formula until we ran out (I had about 3 cases left) and we have had 2 horrible nights
DH says to put her back on rice milk and see if it gets better. We think she may have a sensivity to milk, not an allergy. Anyway, we are waiting for her to outgrow her problems and sleep.
Hope things get better for OP's DD. I wouldnt have a problem with the x-ray. I like to rule things out and wish my GI would have done more tests early on to rule things out or in.
Good luck!