Better yet, find and download the Class 1 medical requirements.
Take a good look at them.
Are you close to any of the minimums and maximums ? Then go see you friendly GPamd request what there’ll probably call a yearly physical with emphasis on the Class 1 medical requirements.
Reason for all of this paranoia….once you’re rejected for a Class 1 medical you’re in this Kafkaesque nightmare of trying to get it resolved.
Have a good read:
https://www.pprune.org/medical-health-62/