Having to deal with various forms of depression and anxiety, as well as type 1 diabetes, I think I qualify. After becoming aware of some of these, I eventually started pushing back against them, and have had decent success with out-of-the-box advice and practitioners...meaning that not only am I still alive, but I enabled my body to clear up or back off some serious shit. (Feel free to ask me.)
So, I have to say that a lot of hidden disabilities are a failure of the healthcare system, or rather "illness maintenance" system. Most health professionals mean well, but they exist in a system that can't even admit that healing exists, much less apply it.
Don't be satisfied by anything mainstream, always ask questions, and keep looking until you get affordable, meaningful, and sensible explanations and applications. You don't have to accept any chronic condition.
In the meantime, feel free to wear a sunflower so we can all recognize each other.