The end is nigh

Optimum:
Retirement is unhealthy for men
Renewing your licence will only cost about £100 for a medical (which you can reclaim from HMRC) which will give you a chance to grill your GP and air any little worries.If the predictions of the experts are correct, there will be an enormous shortage of drivers after brexit which will inflate wages. Signing on with an agency to do one shift a month will keep brain and body active.

Not everybody wants to keep working after 50 years of being at work.
Maybe you have no other interests to keep you active,or your not old enough to retire and are talking out your arris
Enjoy retirement it only lasts a short time compared with working, being dead lasts even longer.
Why pay for a medical when you can make an appointment with your Doctor and ask the same health questions for NOTHING