I did Class 2 just because I thought a good checkup wouldn't hurt. The problems began because I listed any ailments in the previous 70 years. I was asthmatic up until I started playing squash at 49, according to trainers I spoke to I shouldn't have mentioned it however if ever there was reason for an insurance claim they'll use any excuse possible to avoid a payout. The CASA doctor said I needed look-over glasses and a more comprehensive eye test because I declared a detached retina causing floaters in my vision some years back. The specialists dismissed all concerns as my eyesight tested good for my age and there was little risk of another episode. I'd tried hearing aids but sent them back because it was a waste of $4000. They wanted a retest. That came back all good so they set some perimeters for a retest using speech tones rather than the beeps and whistles. I needed 60% at 90db. I achieved 90% at 60db, much better than the tones, bells and whistles.
Anyway it went on from one test to the next over three months. In the end they asked for an angiogram. At that point I'd had enough so I called my GP. He said "There's nothing wrong with you. I'll write them a letter". I had my Class 2 medical certificate within days.