<<It is not a relaxed arrangement in the slightest.>>
I would beg to differ. Long ago I had my Class 1 medical certificate withdrawn, which caused me very considerable concern a) because I thought I might be ill, and b) because my job was on the line.
Following meetings with one or two AMEs I was referred by the CAA to Consultant Neurologist, Gp Capt Merry who was a thorough gentleman. My consultation with him was very relaxed and he put me at ease immediately. Without any major examinations, but with just a few questions and a look at my history he was able to tell me exactly what was causing the "problem", that it was nothing serious and that following his report to SRG I should get my medical back.... which I did, very quickly.