How long have you been on the omeprazole? It may need a little time to improve things? Is your dr specifically for kids or have any gi training? I did take the all of the physician information from the links on the left side of the marci page to the pediatrician. I also brought in a copy of the suggested dosing by marci and a list of the research and a couple of articles.
My pediatrician said the clinic was "on her" about giving higher doses of reflux meds, but because I had requested it (and brought the information), she was willing to do the adjusted dose. Mind you, we had already tried everything she suggested by that point (getting rid of the paci, night feedings; eye roll; wouldn't do that ever again). We were already on a hypoallergenic, too. Once night feeds and paci were gone and things were still off the wall, I think she was finally willing to let us try it, and she had seen dosing like that coming from the clinic with the 6 pediatric GIs in the city. And she thougth the info looked legitimate. That was at 9 months when I came across the info; I just should have gone to the gi MUCH sooner. Both GIs were fine with the dosing, but as time went on, it was becoming more unlikely that it was just plain old reflux, iykwim. It was literally two days (things improving over those two days) before he FINALLY sttn. We didn't figure out the food intollerance, as things were never consistent with regards to foods. One time fine, or the combo of foods was also a factor; it was hard to pin down. Couldn't ever reduce the meds by even a half tab.
Our second gi suggested we try another ppi to see if we could get from the 45 mg dose of prevacid to a lower dose on another ppi. It did work, as he went from 45 mg of prevacid solutab to 20 on nexium. That is why I asked what you had tried prior. Ranitidine is an H2 Blocker, so it works a bit differently than a ppi. I hope you start to see some improvement very soon with the med and dosing change.
The book Eloys mentioned is helpful. Although, I had to muddle through for the first year with just the salicylate info. Just doing that made MAJOR improvements for us; enough of an improvement that we were able to get off meds. We did start all over again with food trials at age 2. I wish I had known more when H was just starting solids. But better late than never, and at age 3.5 he is doing very well and eats pretty broadly (FINALLY). We do make the majority of our meals from scratch to avoid a lot of food additives and dyes.
With regards to respiratory issues, we do have a nebulizer, as he has had a number of cases and needed treatment for wheezing (one requiring an er trip; which lead to the er dr writing a script for the nebulizer). I would probably bring in the EER info, as well. If the reflux is a bit more under control, then perhaps those issues will begin to fade and your lo will feel better. I know our pedi always asked about ear infections, coughing, congestion with regards to his reflux (despite disregarding other things ;-).