Hypat1a

I have little doubt my boyfriend has apnea. All the usual symptons. He is reluctant to get an official diagnosis from a doctor as this would, we understand, be refected on his licence to operate plant. This is vital to his job. My questions 1. Is our understanding correct about his licence.?

1. Can he self treat by buying a CPAP machine. Is there a benefit to seeing the GP?
2. If we do buy a machine what should we consider? Thanks so much for anyones help. Im scared for him when i see him not breathing in his sleep and falling asleep constantly.