I’ve held Third Class until went Basic Med in 4/2018.....all well and good until today I received a letter from the FAA OC Med branch requesting information on previous diagnoses which have been quiescent and not affecting piloting ability: - “SVT” - actually a workup a number of years ago for palpitations that included TMET and Holter without significant findings, - Cluster Headaches - another diagnosis thoroughly worked up and vetted through the FAA a number of years ago, and likewise quiescent, - Hypogonadism - managed by my Primary Internist with topical supplements, and quiescent, asymptomatic, and closely regulated. None of the above required a Special Issuance. So I question what prompted this inquiry from the FAA, and what’s the use of Basic Med if certification by myself and my primary care physician as to lack of impact on flying has been made? I can get documentation of quiescence of latter two diagnoses from my Internist but they’re also requesting another 24 hour Holter monitor. Any idea what got me on the FAA’s radar? Anyone else have similar experience?