@chloec , I realise that this is a very difficult situation for you, which would be made so much easier if your boss was able to adopt a reasonable attitude.
The Equality act does decree that reasonable adjustments are made for you. You need to consider what changes would make your working life easier. Then you need to approach your boss and ask for these changes, which she legally has to consider.
There is an abridged version of the Equality Act here:-
Perhaps you could print it out and discuss it with your boss.
If you are still unable to reach a compromise then you’re looking at a case of constructive dismissal………