A disability or something unusual about them would not cause me to disown a friend. There, after all, but for the Grace of God, go we all.
I shall never forget the reactions of some of her friends to my sister-in-law's diagnosis of breast cancer - some cut her out completely. Why?
But: What would help enormously would be more education and explanation about how to deal with it.
A general approach would only be a start, though, as each person is different and where one (e.g.) bipolar person reacts vehemently to one thing, it might not affect another person with the same condition. So it is also up to the individual themselves to"go on the offensive" and explain to their friends what they have, and how to deal with it.
Perhaps you could tentatively try talking to people about it anxiousgran, instead of bottling it up. Find someone among your acquaintances who maybe has experience or training and start with them. Your condition may be the cause of you bottling things up - so you will have to overcome a lot to do this; I hope it makes you feel better.
For those of us who have not been diagnosed with anything (which doesn't mean to say we don't have anything wrong with us), it is "fear of the unknown" more than distaste, predudice or hatred which causes some of us to just avoid people with any kind of illness or disability, mental or physical. The best people to fight that fear are the affected ones themselves.
So, speaking as an "outsider", I would say that Luckygirl's way of dealing with it was preferable to not talking to anyone. Get out there and tell people - you will find out who your real friends are, and you will get the support you so obviously need. You are literate and eloquent, so saying what you mean shouldn't be a problem for you.
I obviously can't begin to imagine what is going on inside you, so I hope I haven't said anything offensive.