I run an veterinary hospital so a few things:
1) transparency with my team and my boss. Some of the symptoms with Narcolepsy could be dangerous in a setting with animals and needles so for me, it’s important that others are aware
2) plan what you can plan around your most awake times and for the rest, reach out for accommodations
3) talk to your doctor. When I was in college, once I got to my last 2 years, we had to add an additional medication to my daily regimen because i couldn’t do it with my usual prescription.