At the end of my rope with the farting

I love my husband and he is truly a wonderful man but literally every single night he puts on his cpap and falls asleep next to me while I'm reading and lets loose the most disgusting farts I have ever smelled in my life. This can't be normal right? I think I have to make him go to the doctor (which is going to take HUGE effort and nagging because he hates the doctor). I can't live like this anymore--I just want to lie in bed and read for an hour in peace!