I've just had a brilliant access to work assessment. Obviously they can't fund fixing the entire air con system, but he is going to look into getting me a cooled suit like astronaughts wear as layer one of a space suit

And getting many fire doors so that I can open them, make the kitchen accessible, etc.
OF course, if they can't fix the air con then I won't be doing any of the stuff in the A2W report cos I'll have to leave work anyway, but at least I will then have a lot of useful info for whatever job I try next.
The chap also gave me his email address asking me to contact direct if things didn't work too well, or if I needed support with regards to constructive dismissal or the like. Really good experience, and although he knew nothing about PoTS or EDS he asked all the right questions and believed everything I said and took it on board.