I would hate to arrive and not be able to dive. We are over 55 so I think you have to fill it in whether you have a condition or not. We both take medication so we have to. We go to our local GP every August to get it completed and signed-off by him. No cost as we are Canadian. We give the original to CN and keep copies for our dive trips in January & May (this year April).
Better safe than sorry
Couples Negril - September 2011, 2012, 2013 and have just booked 2014
Scuba Club Cozumel - Jan, Apr & Nov 2012 and Jan & Nov 2013
Cobalt Coast, Grand Cayman - May 2013
Retiring & moving to Cozumel, Mexico in early 2014