I'm sorry to hear that your Mum hasn't picked up as much as you hoped she would, it's a worry isn't it. Have you been able to speak to MacM, the hospice & the hospital? Someone needs to help you!! They either need to find what is causing it (so often something quite simple!) or confirm that it's a 'stage' of the cancer.
It is awful for all of you x
Your work would have to be utterly heartless to say you can't stay if you need to.
Maybe your DH could look into a temp nanny or childminder to help you out for a bit, if you can't afford it on your own, perhaps your Dad or brothers coud help you out with that so that you can stay. Also, don't hesitate to ask friends, I'd be very upset if you knew me and didn't ask if I could help you out.
My brother lives near my Mum, but he's married with kids and whilst she helps them out a lot, they don't seem to have much time to help her when she needs things doing or just a bit of company. My brother never goes around 'just for a cuppa' even though he goes past there everynight on his way home and only lives 5 minutes away, so she never gets to actually talk to him as the kids are always there when she sees him.
She misses me a lot and I feel very very guilty living so far away :(
I hope you can get more medical assistance today, someone should be able to come and see her - see if they can do anything to help her regain some strength & awareness.
xx