nursecroft
Wise Old Thumper
My arthritic bunny is heading the same way as your Tinkerbell. Henry has recently stopped coming down stairs, ( he had found it easier to go up as he sort of propelled himself sideways). I do think he is beyond the help of glucosamine.
ATM he can still move well on the flat but often trips over his food bowls and I have to help him back on to his feet. He is on daily metacam and I am happy to say he eats well and loves his junior excell, (he has this because as he has only two molars and no inscisors).
To be worrying about your Mum aswell must be causing you so much distress, I hope get well vibes will work for you.
Have you tried acupunture?