Oh honey, don't beat yourself up over this. I've been there, done that and it doesn't help a bit. My 5 yr old dd has a milk and mold allergy. A few months after she turned 2, she started having constant sinus infections and ear infections. When we first went to an ENT in Jan of 04, we attempted to cut out the milk but I didn't see much difference and Peyton LOVED her chocolate milk so much so I didn't push the issue. In April of that year, she got her tonsils and adenoids out. Over the summer, we ended up testing for Cystic Fibrosis, as well as a few other things, including her immune system because the sinus infections were non-stop. She also ended up with a strep/staph infection that we almost had to do IV antibiotics for. October of that year she had an asthma attack after being at the pumpkin patch . . . the list goes on and on. In Feb./March 05, I finally decided something had to give. The ENT we were using was doing some allergy testing but was very "anal" about what she would do and when. I don't really remember what the final straw was with her BUT out of pure coincidence, Peyton had a 5 day spell with no milk due to being sick and being out of town. During that 5 days I noticed her nose was finally not running! I gave her just a tiny bit of milk and 30 mins later, the snot came pouring. So, FINALLY in May of 2005, we see a new allergist and he listens to me and tests her for milk allergy and there you go, 18 MISERABLE months and 14 antibiotics later, we have the diagnosis that I could have gotten if I'd stuck with the milk theory in the beginning! So, sweetie, there's a true reason for some guilt! Ya know what, though? We aren't rocket scientists. We aren't trained in medicine. We just love our kiddos and do the best we can and if we wake up one day and the fog has lifted, well, yay, we can finally do what needs to be done for our little ones. Hang in there! Trust those mommy instincts!!!