The number you have is an indication of 'severe' apnea. The number is how many events that can/will disrupt your sleep (and can affect organ function and heart function, not to mention induce brain fog and cognitive deficits during the day). My own is only 31/hr untreated, but that is just at the threshold of the rating 'severe'. Below 30 is moderate, and I forget what the low range is, I think below ten, but I'd have to go look.

The formal statistic is called 'AHI', or 'apnea/hypopnea index'. It is based on the number of events per hour of use of the machine. Remember, though, that this is just the average hourly rate, and does not reflect the total number of events (nor the arousals they may have caused, disrupting your normal stages-of-sleep progression) over the total number of hours slept, or when you used the machine.

This is just my personal feeling, and I don't have MS, but it's a disease which seems to progress, and so will whatever your sleep apnea (it's severe, after all...) generates in the way of subsequent disorders, and they'll range from auto-immune to heart rhythm problems and even to the suppression of your immune system. Really, as much as it's a pain where the sun don't shine, you MUST deal constructively with whatever you have the gumption to deal with, and then to stick to it....for your own sake. In this case, CPAP machine use is something that will help, and it can be adapted to and adapted for....whatever changes to usage or how you wear the mask, which mask, which machine, which settings, etc.

It's mind over matter. How much does your health mean to you? And the answer to this is what will help you to undertake all CPAP success entails.