Joe's probably right on that account.
48 hours without food won't harm you.
But, it likely won't do much good either.
Livetoregret, you need to change your attitude if you want to stop feeling the way you do. I'm not going to say some bullshit about people worse off than you in Africa, but in perspective, things could be worse.
You've obviously tried very hard to fix things, and that obviously hasn't helped.
You're looking for the answers in all the wrong places, and you've become obsessed with your health to the point where you're making yourself worse because of the stress.
I don't know the answers to why we have these problems.
1) Drug is still in body and causing these issues (only reason I say this is possible is because some people get side effects after stopping the 'treatment')
2) The drug flat-out just damages the body, because it's chemotherapy (however, some people seem to get none of these symptoms, so that's unexplained)
3) The drug causes autoimmune issues (It obviously can do this, because Oligirl has diabetes) in some patients
4) The drug fucks up the endocrine (hormonal) system... (Could make sense)
5) Accutane damages the intestinal lining and weakens our ability to digest what we're eating (or makes us prone to allergies/ food sensitivities)
Bear in mind there are a few people who have improved without resulting to fasting. Diet clearly plays a part because this drug does something to the G.I. Tract.
There are things you can do to help your body though.
First, you need to stop spending every waking moment trying to find a way out of this. You won't because you don't even know the problem. You're not going to be better today, tomorrow, in a month. Maybe not for a year or longer.
But if someone told you you would get better and don't have to do anything, and you knew for fact that your body would heal in it's own time, you'd probably relax and realise you can't do anything about it right now.
Well, that's probably true.
Have patience because you're wasting what little energy you do have on this.
That's not to say stop trying - Just don't expect something to cure you.
If you have money, and if you're like most of us you're probably lacking, you shouldn't waste it on random supplements.
Get a saliva test for your adrenals and follow a nutritionist's advice on what to eat.
Get a test for digestive issues, as this could be why your skin looks like shit.
I don't know, but stop searching in the dark and come up with a plan where you make the decisions, not fate.
And quit feeling sorry for yourself, it won't do you any good.