I think we have times when we worry about all sorts of things, especially as we get older, and we start to get various conditions. It always seems worse at night, too, doesn’t it, especially when you are by yourself. We sometimes think of worse case scenarios don’t we? In truth, we could, if we let ourselves, frighten our selves witless.
I hope that you are feeling alright, absent and that you have someone nearby you can talk to if there is something in particular worrying you. If it’s the macular degeneration that is giving you worrying thoughts, I can second what jane says - I have a friend who suffers with it and has injections which do help. She has regular optician visits, and so far, things are going well for her. She is still able to drive. I hope these messages of support are helping you. Keep posting. ?