Sorry to those who have lost a loved one.
I understand what you have written op. I feel this, it's like a sense of impending abandonment. I had a difficult upbringing where I was abandoned in some ways and I wonder if this has something to do with it. There is another thread running similar to this and I think it is a fear lots of people have.
It's the thought of going for days without talking to anyone (except my dog) without anyone to have a more in-depth conversation other than just trivial stuff, of being no-ones priority and to have no-one to care for. Loss of connection I suppose. I don't think we are designed to live in isolation but it appears this is what often happens later in life.
I also get overwhelmed quite easily but I guess if I had to manage, I would manage. A lot of this is attributed to my upbringing I think, it has set me at a disadvantage as I am prone to anxiety. I have a few friends but friendships don't come easily as I have a tendency to protect myself but I'm working on this.
Not sure what the answer is but I wish I could get to a place where I feel more comfortable.
I know a few people who live alone...one doesn't really yearn for company and generally keeps busy and gets out for fresh air, the other admits she feels lonely sometimes. So many people have walked this path but I am absolutely dreading it.
I remember my widowed 80 year old grandmother tearfully telling me how lonely she was, it is difficult to forget this. I didn't understand it so much then but I do now. I'm not sure what advice my younger self would have given her.
I think I secretly hope that one of my dc will join me as I have enough money to buy a property with annexe and due to inheritance reasons it would be more beneficial finacially inheritance wise (for them) for me to remain in a large property. But it needs to come from them and I can't demand that. I have also thought about sheltered housing but not sure this would work for me either though some people get so much from it. Age UK have a tenant scheme which could work to ease the isolation - this is where a younger person stays with you paying low rent in return for a couple of hours a day company/jobs - a sort of helpful lodger in the evenings. The money from the low rent option could be put towards employing a companion/assistant for a few hours a week. There are a few options but it is the not knowing how things are going to play out that stresses me out too and that I can't make more concrete plans (that is if I make it into older age). I fear I will be one of those parents who lands on their dc's doorstep or lives a few doors away/around the corner.