Hi Lisa. I'm Louise. Nice to meet you 
I care for my Dad who has MS too. We're pretty similar.
My Dad has had it for a long long time now and he is now wheelchair bound. He is currently going through the process of losing the use of his hand and his swallowing.
I completely understand what your going through. I've been there and it's not nice at all. I'm not going to lie, it's not easy seeing someone you care for go through it but stay strong and remember you need someone there for you too. Talk to someone if you need to. It's a scary prospect I know. Stick close to your Mum if you can, I'm really close to my Mum and I guess you could say we keep each other going.
But don't forget there are people that can help. Chin up 
Louise xo