I had a basic claim for Allergic Rhinitis / Deviated Septum, carpal tunnel and sleep apnea syndrome (SAS). I had the DBQ done by my VA doctor for the SAS, sleep study, an IMO connecting it secondary to AR / DS, about 10 buddy letters regarding symptomology and observations, and a declaration from my wife regarding it and all the symptoms. I also pulled all my surgery records, complaints of poor sleep etc. out of my medical records and cited those.
As far at the AR / DS... I had surgery in service, which I showed, but showed the follow on complaints that the surgery did not correct the issue and I still complained about it in service. I have follow up treatment from the VA after this as well which I gave them.
My claim itself was 'different' so to speak. It was a NOD that turned into a request for reconsideration, which turned into CUE, that then terminated the appeal and started a new claim reopening everything.