I made the mistake of telling a few people about my diagnosis when I was in grad school. This turned out to be like giving them and everyone else they told a license to harass me without consequence. Bonus: if you complain about this behavior, you are apparently reported to the university health system rather than dealing with the harassment.
Then to add insult to injury these people would taunt me that that would be on my record and I would never live it down.
I ultimately ended up having to abandon my career path because of this group of people.
If there was one thing I could go back and change, it would be to have never told anyone about my diagnosis.