LookyBooky, On reflection, I am sorry for saying that you sound horrible. That though wasn't based on you as a person but as just the snapshot of you on the thread. I'm sure you're not. Neither am I a troll, I probably just sound like one. My comments about your finances were bang out of order, sorry, you didn't need that.
I've read your updates again. I'm not reading the other posters because they're picking up different things. From my revised point of view, I think you wouldn't have chosen this situation if you'd known how it was going to pan out for you and your family and I understand how you might feel about that. I would feel 'painted into a corner' if I put myself in your situation.
I'm sure your mum didn't intend for this to be a bone of contention between you, she probably thought she was being fair by giving you and your brother equal share - but I agree, it really isn't because yours comes with strings and his doesn't. All things being equal, he should be doing a lot more for your mum and taking some of the pressure off you. He's really not, is he? I know how this feels actually because Mother's Day every year for me is fraught with tension... my three brothers do nothing or next to it, my mum is disappointed every year about it and deeply sad for ages. The fact that I overdo it to the point of making up the deficit doesn't cut it. Mothers and their sons... it can be a difficult set-up and very hard on any daughters.
I can see then how you were just listing 'hospital visits' as an example and instead of reading that in your filter, I read it in mine. I'm sorry about that. You obviously do quite a lot for your mum and it's grinding you down because a) it's expected and b) it's relentless.
I don't know how you can extricate yourself out of this without causing an almighty fuss and lots of bad feeling. I really don't envy you your situation. It would be a very difficult conversation for you and if your husband can broker a bit of peaceful mediation then that might take a bit of the load off you. Mine can't help but try to 'fix things' so is wholly unhelpful. Yours may be more adroit and sensitive to the position you're in, I hope so.
Anyway, LookyBooky, I've said enough and I'm going to shut up. I'll just read the updates quietly to myself. I do hope this, in whatever format it will be, works out for you. And I'm sorry for needling you, completely unnecessary and horrible of me.