As stated in my introductory thread, I am scheduled for an appointment with Dr. KDM in November. They have sent me the attached file as pre-appointment info and said that no further action is necessary. However, in this file they only state "Blood tests" to the tune of 2500 €, without further explanation. I understand these will be selected by KDM based on my symptoms and history. However, I would like to know what tests I could do before going to see him and which of those I already did I should take to him. I should mention that tests I already did all came out fine (details in my original post), and it's been a while (~2 yrs) since I last did blood tests, so those are not up to date. I see three main categories of things I could ask my romanian GP for blood tests that are commonly available repeat CPET, tilt table and other "mechanical" tests tests for excluding other diseases Could you please help fill this in? Thanks! On a last note, they also did not ask anything about symptoms or send any form for me to fill in. If they plan on doing it all there, they might have the surprise that I'm too exhausted to do it due to the trip. Oh, and any other preparatory advice for the visit is of course more than welcome!