.Might sound stupid but how do you carry narcolepsy?

Just curious if its only genetic or you can bring it somehow

Answers:

I sleep 12 hours a day, and it is of late too much. Do I need to find a road to change it?

Not stupid. Bu you don't "get" it. It's not caught. So far as I know, it is not cause by a virus or a bacterium, which one might "get" or catch.
It's a neurological disorder. How and why it develops is not entirely clear.

How do I catch rid of mosquito bite itches?

As far as I know, it is only genetic. Also, a fun certainty... Dogs can be narcoleptic.

What is best for an upset tummy?

Yes, it is. It also is hereditary and have environmental causes.