EllenVannin You were badly advised. I was a volunteer Home Visitor with, what was then, Age Concern for 10 year. almost all my work was filling in AA forms and from the little you say about your condition in your post, you should undoubtedly have got AA and if I had filled in the form I could probably have done it.
The problem with AA is that you need to understand what they are looking for, and that is often not obvious. It is all about what, physically, your body can and cannot do, not what the result of that problem is. It is about having arthritis in your hands so that you cannot grasp things, not that as a result pushing a lawn mower and doing the garden is not possible.
Another example, you may still be using a bath because you do not have a shower and be a bit afraid of falling or slipping because getting in and out is difficult - or you may have had a shower installed because you cannot get in and out of a bath. Both those examples count as having difficulty with having a bath or shower, because the shower is a solution to a physical problem you have, the problem is still there.
With TIAs, if you have one, you may have another and if you fall you may not be able to get up unaided. So in theory you need someone with you all the time in case this happens. Of course, if you live alone this is impractical and probably unwanted, but it indicates a vulnerability you have - and a personal alarm is again a solution to a problem, and does not mean the problem is no longer there.
Once you have the money you can spend it how you like. One client I had used some of it to place small bets on the horses. He had worked his whole life in the racing industry
He now had severe arthritis and lived alone in one room of his house and rarely left the house. On Saturday afternoon a neighbour came round who shared his interest in horse racing, they would discuss the racing and the neighbour went out and laid a few bets for him when he laid his own and at the end of the afternoon would come in again and discuss how things went and (hopefully) pay him his winnings. That did more for his mental health than anything else.