Having "not all disabilities are visible" posted at me wasn't enough to change my behavior.
A friend told me they are narcoleptic and I feel like a complete ass for having commented on them looking tired a couple of times in the past.
I took "not all disabilities are visible" to just mean to accept when people tell you they have a disability/illness, but it also means don't blame/shame people for their "weird" behavior/moods/habits. (And those actually should be fine even without any disability)
