I read your novel mate. I'm willing to put this as one of the longest (if not, THE longest) post(s) on this forum. Jokes aside, your life sounds like a nightmare.
This may come off as poor taste, but I was eating while I was reading your story, and.. Even though I don't have the best stomach behaviours either, your frustrations with your illness.. The idea of some of the most basic things being terrifying is.. Horrific to say the least. And there's nothing worse than suffering in front of people who just don't give a damn. I know that all to well.
I told my ex-girlfriend about my suicidal thoughts. How awful I feel every second of the day. All she does is say "I'm sorry", and then continues to talk about how great her life is. Goddamm, I know that pain too well, friend.
You probably weren't intending this, but.. Your story.. Really reflects on how horrible life, and people, can be. It's a scary situation. Before everything you described here, you were doing fabulous in life. I reckon that if this never happened (your misery, I'm referring to), you'd never understand the wanting to escape.. You'd probably never understand having suicidal thoughts.. You'd never understand the frustrations of being isolated, unseen, etcetera. How scary is that? How quicky life, and people can destroy you, and... Just..
I don't have much positive things to say, other than I hope you find what you're looking for.
PS.
I have severe depression that makes it unbearable to do anything, but your writing is so damn good that I genuinely was hooked. Consider writing a book or something.