Well at the end of the day if they do that then screw them. You're not "crazy", you're human. Anyone who judges another for suffering a mental health problem, clearly lives with their head in the clouds. I wouldn't worry about it.
I tend to make a joke out of it, partly defence admittedly, but it does make it easier in a way and I often refer to myself as crazy. I'd rather people knew I was a sandwich short of a picnic, that the cheese has well and truly slid off my cracker, than assume I'd never had a problem only for them to discover otherwise elsewhere.
You'll be fine

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